Home / 119,799.15-165,320.78-66,089.31

Finding the Fourth Proportional to 119,799.15, 165,320.78 and 66,089.31

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Solution

The fourth proportional to 119,799.15, 165,320.78 and 66,089.31 is: 91,202.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,799.15 : 165,320.78 = 66,089.31 : x
  2. Step 2: Convert to fraction form
    119,799.15/165,320.78 = 66,089.31/x
  3. Step 3: Cross multiply
    119,799.15x = 165,320.78 × 66,089.31
  4. Step 4: Simplify right side
    119,799.15x = 10,925,935,948.42
  5. Step 5: Solve for x
    x = 10,925,935,948.42/119,799.15
  6. Step 6: Final answer
    x = 91,202.12

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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.