Home / 145,531.96-218,414.85-75,431.32

Finding the Fourth Proportional to 145,531.96, 218,414.85 and 75,431.32

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Solution

The fourth proportional to 145,531.96, 218,414.85 and 75,431.32 is: 113,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,531.96 : 218,414.85 = 75,431.32 : x
  2. Step 2: Convert to fraction form
    145,531.96/218,414.85 = 75,431.32/x
  3. Step 3: Cross multiply
    145,531.96x = 218,414.85 × 75,431.32
  4. Step 4: Simplify right side
    145,531.96x = 16,475,320,443.10
  5. Step 5: Solve for x
    x = 16,475,320,443.10/145,531.96
  6. Step 6: Final answer
    x = 113,207.58

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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.