Home / 187,081.04-280,613.08-68,743.72

Finding the Fourth Proportional to 187,081.04, 280,613.08 and 68,743.72

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Solution

The fourth proportional to 187,081.04, 280,613.08 and 68,743.72 is: 103,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,081.04 : 280,613.08 = 68,743.72 : x
  2. Step 2: Convert to fraction form
    187,081.04/280,613.08 = 68,743.72/x
  3. Step 3: Cross multiply
    187,081.04x = 280,613.08 × 68,743.72
  4. Step 4: Simplify right side
    187,081.04x = 19,290,386,999.86
  5. Step 5: Solve for x
    x = 19,290,386,999.86/187,081.04
  6. Step 6: Final answer
    x = 103,112.46

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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.