Home / 123,581.39-185,386.67-92,613.47

Finding the Fourth Proportional to 123,581.39, 185,386.67 and 92,613.47

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Solution

The fourth proportional to 123,581.39, 185,386.67 and 92,613.47 is: 138,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,581.39 : 185,386.67 = 92,613.47 : x
  2. Step 2: Convert to fraction form
    123,581.39/185,386.67 = 92,613.47/x
  3. Step 3: Cross multiply
    123,581.39x = 185,386.67 × 92,613.47
  4. Step 4: Simplify right side
    123,581.39x = 17,169,302,800.44
  5. Step 5: Solve for x
    x = 17,169,302,800.44/123,581.39
  6. Step 6: Final answer
    x = 138,931.14

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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.