Home / 120,068.12-165,700.42-69,088.61

Finding the Fourth Proportional to 120,068.12, 165,700.42 and 69,088.61

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Solution

The fourth proportional to 120,068.12, 165,700.42 and 69,088.61 is: 95,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,068.12 : 165,700.42 = 69,088.61 : x
  2. Step 2: Convert to fraction form
    120,068.12/165,700.42 = 69,088.61/x
  3. Step 3: Cross multiply
    120,068.12x = 165,700.42 × 69,088.61
  4. Step 4: Simplify right side
    120,068.12x = 11,448,011,935.75
  5. Step 5: Solve for x
    x = 11,448,011,935.75/120,068.12
  6. Step 6: Final answer
    x = 95,345.97

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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.