Home / 156,929.94-216,565.52-85,310.01

Finding the Fourth Proportional to 156,929.94, 216,565.52 and 85,310.01

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Solution

The fourth proportional to 156,929.94, 216,565.52 and 85,310.01 is: 117,729.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,929.94 : 216,565.52 = 85,310.01 : x
  2. Step 2: Convert to fraction form
    156,929.94/216,565.52 = 85,310.01/x
  3. Step 3: Cross multiply
    156,929.94x = 216,565.52 × 85,310.01
  4. Step 4: Simplify right side
    156,929.94x = 18,475,206,250.31
  5. Step 5: Solve for x
    x = 18,475,206,250.31/156,929.94
  6. Step 6: Final answer
    x = 117,729.01

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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.