Home / 135,641.04-187,182.70-75,211.80

Finding the Fourth Proportional to 135,641.04, 187,182.70 and 75,211.80

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Solution

The fourth proportional to 135,641.04, 187,182.70 and 75,211.80 is: 103,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,641.04 : 187,182.70 = 75,211.80 : x
  2. Step 2: Convert to fraction form
    135,641.04/187,182.70 = 75,211.80/x
  3. Step 3: Cross multiply
    135,641.04x = 187,182.70 × 75,211.80
  4. Step 4: Simplify right side
    135,641.04x = 14,078,347,795.86
  5. Step 5: Solve for x
    x = 14,078,347,795.86/135,641.04
  6. Step 6: Final answer
    x = 103,791.21

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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.