Home / 113,564.12-156,732.23-65,819.48

Finding the Fourth Proportional to 113,564.12, 156,732.23 and 65,819.48

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Solution

The fourth proportional to 113,564.12, 156,732.23 and 65,819.48 is: 90,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,564.12 : 156,732.23 = 65,819.48 : x
  2. Step 2: Convert to fraction form
    113,564.12/156,732.23 = 65,819.48/x
  3. Step 3: Cross multiply
    113,564.12x = 156,732.23 × 65,819.48
  4. Step 4: Simplify right side
    113,564.12x = 10,316,033,258.73
  5. Step 5: Solve for x
    x = 10,316,033,258.73/113,564.12
  6. Step 6: Final answer
    x = 90,838.85

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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.