Home / 156,915.32-216,542.30-88,945.16

Finding the Fourth Proportional to 156,915.32, 216,542.30 and 88,945.16

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Solution

The fourth proportional to 156,915.32, 216,542.30 and 88,945.16 is: 122,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915.32 : 216,542.30 = 88,945.16 : x
  2. Step 2: Convert to fraction form
    156,915.32/216,542.30 = 88,945.16/x
  3. Step 3: Cross multiply
    156,915.32x = 216,542.30 × 88,945.16
  4. Step 4: Simplify right side
    156,915.32x = 19,260,389,520.27
  5. Step 5: Solve for x
    x = 19,260,389,520.27/156,915.32
  6. Step 6: Final answer
    x = 122,743.84

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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.