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Finding the Fourth Proportional to 113,099.60, 169,541.40 and 42,003.20

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Solution

The fourth proportional to 113,099.60, 169,541.40 and 42,003.20 is: 62,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,099.60 : 169,541.40 = 42,003.20 : x
  2. Step 2: Convert to fraction form
    113,099.60/169,541.40 = 42,003.20/x
  3. Step 3: Cross multiply
    113,099.60x = 169,541.40 × 42,003.20
  4. Step 4: Simplify right side
    113,099.60x = 7,121,281,332.48
  5. Step 5: Solve for x
    x = 7,121,281,332.48/113,099.60
  6. Step 6: Final answer
    x = 62,964.69

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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.