Home / 113,205.76-156,224.66-70,789.12

Finding the Fourth Proportional to 113,205.76, 156,224.66 and 70,789.12

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Solution

The fourth proportional to 113,205.76, 156,224.66 and 70,789.12 is: 97,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,205.76 : 156,224.66 = 70,789.12 : x
  2. Step 2: Convert to fraction form
    113,205.76/156,224.66 = 70,789.12/x
  3. Step 3: Cross multiply
    113,205.76x = 156,224.66 × 70,789.12
  4. Step 4: Simplify right side
    113,205.76x = 11,059,006,203.70
  5. Step 5: Solve for x
    x = 11,059,006,203.70/113,205.76
  6. Step 6: Final answer
    x = 97,689.43

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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.