Home / 119,680.17-165,124.31-77,262.81

Finding the Fourth Proportional to 119,680.17, 165,124.31 and 77,262.81

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Solution

The fourth proportional to 119,680.17, 165,124.31 and 77,262.81 is: 106,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,680.17 : 165,124.31 = 77,262.81 : x
  2. Step 2: Convert to fraction form
    119,680.17/165,124.31 = 77,262.81/x
  3. Step 3: Cross multiply
    119,680.17x = 165,124.31 × 77,262.81
  4. Step 4: Simplify right side
    119,680.17x = 12,757,967,803.60
  5. Step 5: Solve for x
    x = 12,757,967,803.60/119,680.17
  6. Step 6: Final answer
    x = 106,600.52

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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.