Home / 102,117.78-140,901.66-59,668.11

Finding the Fourth Proportional to 102,117.78, 140,901.66 and 59,668.11

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Solution

The fourth proportional to 102,117.78, 140,901.66 and 59,668.11 is: 82,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,117.78 : 140,901.66 = 59,668.11 : x
  2. Step 2: Convert to fraction form
    102,117.78/140,901.66 = 59,668.11/x
  3. Step 3: Cross multiply
    102,117.78x = 140,901.66 × 59,668.11
  4. Step 4: Simplify right side
    102,117.78x = 8,407,335,748.06
  5. Step 5: Solve for x
    x = 8,407,335,748.06/102,117.78
  6. Step 6: Final answer
    x = 82,329.79

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1.5x scale

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.