Home / 130,788.42-180,542.87-88,404.36

Finding the Fourth Proportional to 130,788.42, 180,542.87 and 88,404.36

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Solution

The fourth proportional to 130,788.42, 180,542.87 and 88,404.36 is: 122,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,788.42 : 180,542.87 = 88,404.36 : x
  2. Step 2: Convert to fraction form
    130,788.42/180,542.87 = 88,404.36/x
  3. Step 3: Cross multiply
    130,788.42x = 180,542.87 × 88,404.36
  4. Step 4: Simplify right side
    130,788.42x = 15,960,776,432.89
  5. Step 5: Solve for x
    x = 15,960,776,432.89/130,788.42
  6. Step 6: Final answer
    x = 122,035.09

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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.