Home / 72,171,059.40-108,256,589.10-70,736,168.70

Finding the Fourth Proportional to 72,171,059.40, 108,256,589.10 and 70,736,168.70

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Solution

The fourth proportional to 72,171,059.40, 108,256,589.10 and 70,736,168.70 is: 106,104,253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,059.40 : 108,256,589.10 = 70,736,168.70 : x
  2. Step 2: Convert to fraction form
    72,171,059.40/108,256,589.10 = 70,736,168.70/x
  3. Step 3: Cross multiply
    72,171,059.40x = 108,256,589.10 × 70,736,168.70
  4. Step 4: Simplify right side
    72,171,059.40x = 7,657,656,349,464,181
  5. Step 5: Solve for x
    x = 7,657,656,349,464,181/72,171,059.40
  6. Step 6: Final answer
    x = 106,104,253.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.