Home / 102,974.42-142,031.32-94,503.90

Finding the Fourth Proportional to 102,974.42, 142,031.32 and 94,503.90

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Solution

The fourth proportional to 102,974.42, 142,031.32 and 94,503.90 is: 130,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,974.42 : 142,031.32 = 94,503.90 : x
  2. Step 2: Convert to fraction form
    102,974.42/142,031.32 = 94,503.90/x
  3. Step 3: Cross multiply
    102,974.42x = 142,031.32 × 94,503.90
  4. Step 4: Simplify right side
    102,974.42x = 13,422,513,691.16
  5. Step 5: Solve for x
    x = 13,422,513,691.16/102,974.42
  6. Step 6: Final answer
    x = 130,348.04

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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.