Home / 113,259.60-156,467.72-74,589.32

Finding the Fourth Proportional to 113,259.60, 156,467.72 and 74,589.32

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Solution

The fourth proportional to 113,259.60, 156,467.72 and 74,589.32 is: 103,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,259.60 : 156,467.72 = 74,589.32 : x
  2. Step 2: Convert to fraction form
    113,259.60/156,467.72 = 74,589.32/x
  3. Step 3: Cross multiply
    113,259.60x = 156,467.72 × 74,589.32
  4. Step 4: Simplify right side
    113,259.60x = 11,670,820,836.75
  5. Step 5: Solve for x
    x = 11,670,820,836.75/113,259.60
  6. Step 6: Final answer
    x = 103,044.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.