Home / 130,788.67-180,543.21-88,404.61

Finding the Fourth Proportional to 130,788.67, 180,543.21 and 88,404.61

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Solution

The fourth proportional to 130,788.67, 180,543.21 and 88,404.61 is: 122,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,788.67 : 180,543.21 = 88,404.61 : x
  2. Step 2: Convert to fraction form
    130,788.67/180,543.21 = 88,404.61/x
  3. Step 3: Cross multiply
    130,788.67x = 180,543.21 × 88,404.61
  4. Step 4: Simplify right side
    130,788.67x = 15,960,851,616.84
  5. Step 5: Solve for x
    x = 15,960,851,616.84/130,788.67
  6. Step 6: Final answer
    x = 122,035.43

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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.