Home / 130,432.64-195,314.18-90,394.56

Finding the Fourth Proportional to 130,432.64, 195,314.18 and 90,394.56

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Solution

The fourth proportional to 130,432.64, 195,314.18 and 90,394.56 is: 135,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,432.64 : 195,314.18 = 90,394.56 : x
  2. Step 2: Convert to fraction form
    130,432.64/195,314.18 = 90,394.56/x
  3. Step 3: Cross multiply
    130,432.64x = 195,314.18 × 90,394.56
  4. Step 4: Simplify right side
    130,432.64x = 17,655,338,910.89
  5. Step 5: Solve for x
    x = 17,655,338,910.89/130,432.64
  6. Step 6: Final answer
    x = 135,359.83

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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.