Home / 110,278.40-165,417.60-31,395.20

Finding the Fourth Proportional to 110,278.40, 165,417.60 and 31,395.20

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Solution

The fourth proportional to 110,278.40, 165,417.60 and 31,395.20 is: 47,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,278.40 : 165,417.60 = 31,395.20 : x
  2. Step 2: Convert to fraction form
    110,278.40/165,417.60 = 31,395.20/x
  3. Step 3: Cross multiply
    110,278.40x = 165,417.60 × 31,395.20
  4. Step 4: Simplify right side
    110,278.40x = 5,193,318,635.52
  5. Step 5: Solve for x
    x = 5,193,318,635.52/110,278.40
  6. Step 6: Final answer
    x = 47,092.80

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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.