Home / 119,830.47-165,371.05-66,118.97

Finding the Fourth Proportional to 119,830.47, 165,371.05 and 66,118.97

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Solution

The fourth proportional to 119,830.47, 165,371.05 and 66,118.97 is: 91,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,830.47 : 165,371.05 = 66,118.97 : x
  2. Step 2: Convert to fraction form
    119,830.47/165,371.05 = 66,118.97/x
  3. Step 3: Cross multiply
    119,830.47x = 165,371.05 × 66,118.97
  4. Step 4: Simplify right side
    119,830.47x = 10,934,162,666.96
  5. Step 5: Solve for x
    x = 10,934,162,666.96/119,830.47
  6. Step 6: Final answer
    x = 91,246.93

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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.