Home / 133,306.65-199,738.53-93,780.72

Finding the Fourth Proportional to 133,306.65, 199,738.53 and 93,780.72

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Solution

The fourth proportional to 133,306.65, 199,738.53 and 93,780.72 is: 140,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,306.65 : 199,738.53 = 93,780.72 : x
  2. Step 2: Convert to fraction form
    133,306.65/199,738.53 = 93,780.72/x
  3. Step 3: Cross multiply
    133,306.65x = 199,738.53 × 93,780.72
  4. Step 4: Simplify right side
    133,306.65x = 18,731,623,155.14
  5. Step 5: Solve for x
    x = 18,731,623,155.14/133,306.65
  6. Step 6: Final answer
    x = 140,515.29

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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.