Home / 113,158.48-169,715.85-107,538.70

Finding the Fourth Proportional to 113,158.48, 169,715.85 and 107,538.70

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Solution

The fourth proportional to 113,158.48, 169,715.85 and 107,538.70 is: 161,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,158.48 : 169,715.85 = 107,538.70 : x
  2. Step 2: Convert to fraction form
    113,158.48/169,715.85 = 107,538.70/x
  3. Step 3: Cross multiply
    113,158.48x = 169,715.85 × 107,538.70
  4. Step 4: Simplify right side
    113,158.48x = 18,251,021,878.40
  5. Step 5: Solve for x
    x = 18,251,021,878.40/113,158.48
  6. Step 6: Final answer
    x = 161,287.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.