Home / 118,438.62-163,438.34-64,724.04

Finding the Fourth Proportional to 118,438.62, 163,438.34 and 64,724.04

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Solution

The fourth proportional to 118,438.62, 163,438.34 and 64,724.04 is: 89,315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,438.62 : 163,438.34 = 64,724.04 : x
  2. Step 2: Convert to fraction form
    118,438.62/163,438.34 = 64,724.04/x
  3. Step 3: Cross multiply
    118,438.62x = 163,438.34 × 64,724.04
  4. Step 4: Simplify right side
    118,438.62x = 10,578,389,332.07
  5. Step 5: Solve for x
    x = 10,578,389,332.07/118,438.62
  6. Step 6: Final answer
    x = 89,315.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.