Home / 102,982.32-142,042.20-94,511.76

Finding the Fourth Proportional to 102,982.32, 142,042.20 and 94,511.76

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Solution

The fourth proportional to 102,982.32, 142,042.20 and 94,511.76 is: 130,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,982.32 : 142,042.20 = 94,511.76 : x
  2. Step 2: Convert to fraction form
    102,982.32/142,042.20 = 94,511.76/x
  3. Step 3: Cross multiply
    102,982.32x = 142,042.20 × 94,511.76
  4. Step 4: Simplify right side
    102,982.32x = 13,424,658,316.27
  5. Step 5: Solve for x
    x = 13,424,658,316.27/102,982.32
  6. Step 6: Final answer
    x = 130,358.86

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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.