Home / 113,560.76-156,719.13-65,829.08

Finding the Fourth Proportional to 113,560.76, 156,719.13 and 65,829.08

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Solution

The fourth proportional to 113,560.76, 156,719.13 and 65,829.08 is: 90,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,560.76 : 156,719.13 = 65,829.08 : x
  2. Step 2: Convert to fraction form
    113,560.76/156,719.13 = 65,829.08/x
  3. Step 3: Cross multiply
    113,560.76x = 156,719.13 × 65,829.08
  4. Step 4: Simplify right side
    113,560.76x = 10,316,676,146.30
  5. Step 5: Solve for x
    x = 10,316,676,146.30/113,560.76
  6. Step 6: Final answer
    x = 90,847.19

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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.