Home / 123,921.60-185,878.53-39,686.82

Finding the Fourth Proportional to 123,921.60, 185,878.53 and 39,686.82

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Solution

The fourth proportional to 123,921.60, 185,878.53 and 39,686.82 is: 59,528.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,921.60 : 185,878.53 = 39,686.82 : x
  2. Step 2: Convert to fraction form
    123,921.60/185,878.53 = 39,686.82/x
  3. Step 3: Cross multiply
    123,921.60x = 185,878.53 × 39,686.82
  4. Step 4: Simplify right side
    123,921.60x = 7,376,927,761.97
  5. Step 5: Solve for x
    x = 7,376,927,761.97/123,921.60
  6. Step 6: Final answer
    x = 59,528.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.