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Finding the Fourth Proportional to 113,301.60, 169,844.40 and 42,205.20

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Solution

The fourth proportional to 113,301.60, 169,844.40 and 42,205.20 is: 63,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,301.60 : 169,844.40 = 42,205.20 : x
  2. Step 2: Convert to fraction form
    113,301.60/169,844.40 = 42,205.20/x
  3. Step 3: Cross multiply
    113,301.60x = 169,844.40 × 42,205.20
  4. Step 4: Simplify right side
    113,301.60x = 7,168,316,870.88
  5. Step 5: Solve for x
    x = 7,168,316,870.88/113,301.60
  6. Step 6: Final answer
    x = 63,267.57

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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.