Home / 100,024.20-149,882.70-86,814.60

Finding the Fourth Proportional to 100,024.20, 149,882.70 and 86,814.60

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Solution

The fourth proportional to 100,024.20, 149,882.70 and 86,814.60 is: 130,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,024.20 : 149,882.70 = 86,814.60 : x
  2. Step 2: Convert to fraction form
    100,024.20/149,882.70 = 86,814.60/x
  3. Step 3: Cross multiply
    100,024.20x = 149,882.70 × 86,814.60
  4. Step 4: Simplify right side
    100,024.20x = 13,012,006,647.42
  5. Step 5: Solve for x
    x = 13,012,006,647.42/100,024.20
  6. Step 6: Final answer
    x = 130,088.59

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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.