Home / 107,747.90-148,686.37-61,805.17

Finding the Fourth Proportional to 107,747.90, 148,686.37 and 61,805.17

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Solution

The fourth proportional to 107,747.90, 148,686.37 and 61,805.17 is: 85,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,747.90 : 148,686.37 = 61,805.17 : x
  2. Step 2: Convert to fraction form
    107,747.90/148,686.37 = 61,805.17/x
  3. Step 3: Cross multiply
    107,747.90x = 148,686.37 × 61,805.17
  4. Step 4: Simplify right side
    107,747.90x = 9,189,585,848.30
  5. Step 5: Solve for x
    x = 9,189,585,848.30/107,747.90
  6. Step 6: Final answer
    x = 85,287.85

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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.