Home / 104,478.04-156,716.34-42,147.64

Finding the Fourth Proportional to 104,478.04, 156,716.34 and 42,147.64

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Solution

The fourth proportional to 104,478.04, 156,716.34 and 42,147.64 is: 63,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,478.04 : 156,716.34 = 42,147.64 : x
  2. Step 2: Convert to fraction form
    104,478.04/156,716.34 = 42,147.64/x
  3. Step 3: Cross multiply
    104,478.04x = 156,716.34 × 42,147.64
  4. Step 4: Simplify right side
    104,478.04x = 6,605,223,880.44
  5. Step 5: Solve for x
    x = 6,605,223,880.44/104,478.04
  6. Step 6: Final answer
    x = 63,221.17

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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.