Home / 116,869.15-161,223.03-76,565.17

Finding the Fourth Proportional to 116,869.15, 161,223.03 and 76,565.17

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Solution

The fourth proportional to 116,869.15, 161,223.03 and 76,565.17 is: 105,622.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,869.15 : 161,223.03 = 76,565.17 : x
  2. Step 2: Convert to fraction form
    116,869.15/161,223.03 = 76,565.17/x
  3. Step 3: Cross multiply
    116,869.15x = 161,223.03 × 76,565.17
  4. Step 4: Simplify right side
    116,869.15x = 12,344,068,699.87
  5. Step 5: Solve for x
    x = 12,344,068,699.87/116,869.15
  6. Step 6: Final answer
    x = 105,622.99

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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.