Home / 156,884.80-216,391.52-103,152.64

Finding the Fourth Proportional to 156,884.80, 216,391.52 and 103,152.64

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Solution

The fourth proportional to 156,884.80, 216,391.52 and 103,152.64 is: 142,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,884.80 : 216,391.52 = 103,152.64 : x
  2. Step 2: Convert to fraction form
    156,884.80/216,391.52 = 103,152.64/x
  3. Step 3: Cross multiply
    156,884.80x = 216,391.52 × 103,152.64
  4. Step 4: Simplify right side
    156,884.80x = 22,321,356,561.61
  5. Step 5: Solve for x
    x = 22,321,356,561.61/156,884.80
  6. Step 6: Final answer
    x = 142,278.64

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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.