Home / 105,149.73-145,089.51-62,123.25

Finding the Fourth Proportional to 105,149.73, 145,089.51 and 62,123.25

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Solution

The fourth proportional to 105,149.73, 145,089.51 and 62,123.25 is: 85,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,149.73 : 145,089.51 = 62,123.25 : x
  2. Step 2: Convert to fraction form
    105,149.73/145,089.51 = 62,123.25/x
  3. Step 3: Cross multiply
    105,149.73x = 145,089.51 × 62,123.25
  4. Step 4: Simplify right side
    105,149.73x = 9,013,431,902.11
  5. Step 5: Solve for x
    x = 9,013,431,902.11/105,149.73
  6. Step 6: Final answer
    x = 85,719.97

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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.