Home / 113,147.10-156,125.66-65,391.24

Finding the Fourth Proportional to 113,147.10, 156,125.66 and 65,391.24

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Solution

The fourth proportional to 113,147.10, 156,125.66 and 65,391.24 is: 90,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,147.10 : 156,125.66 = 65,391.24 : x
  2. Step 2: Convert to fraction form
    113,147.10/156,125.66 = 65,391.24/x
  3. Step 3: Cross multiply
    113,147.10x = 156,125.66 × 65,391.24
  4. Step 4: Simplify right side
    113,147.10x = 10,209,250,503.22
  5. Step 5: Solve for x
    x = 10,209,250,503.22/113,147.10
  6. Step 6: Final answer
    x = 90,229.89

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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.