Home / 107,787.61-148,747.17-64,767.83

Finding the Fourth Proportional to 107,787.61, 148,747.17 and 64,767.83

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Solution

The fourth proportional to 107,787.61, 148,747.17 and 64,767.83 is: 89,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,787.61 : 148,747.17 = 64,767.83 : x
  2. Step 2: Convert to fraction form
    107,787.61/148,747.17 = 64,767.83/x
  3. Step 3: Cross multiply
    107,787.61x = 148,747.17 × 64,767.83
  4. Step 4: Simplify right side
    107,787.61x = 9,634,030,918.68
  5. Step 5: Solve for x
    x = 9,634,030,918.68/107,787.61
  6. Step 6: Final answer
    x = 89,379.76

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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.