Home / 113,241.60-169,754.40-42,145.20

Finding the Fourth Proportional to 113,241.60, 169,754.40 and 42,145.20

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Solution

The fourth proportional to 113,241.60, 169,754.40 and 42,145.20 is: 63,177.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,241.60 : 169,754.40 = 42,145.20 : x
  2. Step 2: Convert to fraction form
    113,241.60/169,754.40 = 42,145.20/x
  3. Step 3: Cross multiply
    113,241.60x = 169,754.40 × 42,145.20
  4. Step 4: Simplify right side
    113,241.60x = 7,154,333,138.88
  5. Step 5: Solve for x
    x = 7,154,333,138.88/113,241.60
  6. Step 6: Final answer
    x = 63,177.61

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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.