Home / 113,360.76-156,428.19-65,617.02

Finding the Fourth Proportional to 113,360.76, 156,428.19 and 65,617.02

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Solution

The fourth proportional to 113,360.76, 156,428.19 and 65,617.02 is: 90,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,360.76 : 156,428.19 = 65,617.02 : x
  2. Step 2: Convert to fraction form
    113,360.76/156,428.19 = 65,617.02/x
  3. Step 3: Cross multiply
    113,360.76x = 156,428.19 × 65,617.02
  4. Step 4: Simplify right side
    113,360.76x = 10,264,351,671.79
  5. Step 5: Solve for x
    x = 10,264,351,671.79/113,360.76
  6. Step 6: Final answer
    x = 90,545.90

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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.