Home / 103,717.38-155,444.85-66,262.98

Finding the Fourth Proportional to 103,717.38, 155,444.85 and 66,262.98

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Solution

The fourth proportional to 103,717.38, 155,444.85 and 66,262.98 is: 99,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,717.38 : 155,444.85 = 66,262.98 : x
  2. Step 2: Convert to fraction form
    103,717.38/155,444.85 = 66,262.98/x
  3. Step 3: Cross multiply
    103,717.38x = 155,444.85 × 66,262.98
  4. Step 4: Simplify right side
    103,717.38x = 10,300,238,986.65
  5. Step 5: Solve for x
    x = 10,300,238,986.65/103,717.38
  6. Step 6: Final answer
    x = 99,310.64

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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.