Home / 156,627.60-234,941.40-72,387.60

Finding the Fourth Proportional to 156,627.60, 234,941.40 and 72,387.60

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Solution

The fourth proportional to 156,627.60, 234,941.40 and 72,387.60 is: 108,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,627.60 : 234,941.40 = 72,387.60 : x
  2. Step 2: Convert to fraction form
    156,627.60/234,941.40 = 72,387.60/x
  3. Step 3: Cross multiply
    156,627.60x = 234,941.40 × 72,387.60
  4. Step 4: Simplify right side
    156,627.60x = 17,006,844,086.64
  5. Step 5: Solve for x
    x = 17,006,844,086.64/156,627.60
  6. Step 6: Final answer
    x = 108,581.40

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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.