Home / 95,228.40-131,430.72-72,531.12

Finding the Fourth Proportional to 95,228.40, 131,430.72 and 72,531.12

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Solution

The fourth proportional to 95,228.40, 131,430.72 and 72,531.12 is: 100,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,228.40 : 131,430.72 = 72,531.12 : x
  2. Step 2: Convert to fraction form
    95,228.40/131,430.72 = 72,531.12/x
  3. Step 3: Cross multiply
    95,228.40x = 131,430.72 × 72,531.12
  4. Step 4: Simplify right side
    95,228.40x = 9,532,817,324.01
  5. Step 5: Solve for x
    x = 9,532,817,324.01/95,228.40
  6. Step 6: Final answer
    x = 100,104.77

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1.5x scale

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.