Home / 113,459.13-156,616.45-89,196.80

Finding the Fourth Proportional to 113,459.13, 156,616.45 and 89,196.80

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Solution

The fourth proportional to 113,459.13, 156,616.45 and 89,196.80 is: 123,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,459.13 : 156,616.45 = 89,196.80 : x
  2. Step 2: Convert to fraction form
    113,459.13/156,616.45 = 89,196.80/x
  3. Step 3: Cross multiply
    113,459.13x = 156,616.45 × 89,196.80
  4. Step 4: Simplify right side
    113,459.13x = 13,969,685,161.29
  5. Step 5: Solve for x
    x = 13,969,685,161.29/113,459.13
  6. Step 6: Final answer
    x = 123,125.26

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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.