Home / 240,143.67-331,404.89-132,720.66

Finding the Fourth Proportional to 240,143.67, 331,404.89 and 132,720.66

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Solution

The fourth proportional to 240,143.67, 331,404.89 and 132,720.66 is: 183,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,143.67 : 331,404.89 = 132,720.66 : x
  2. Step 2: Convert to fraction form
    240,143.67/331,404.89 = 132,720.66/x
  3. Step 3: Cross multiply
    240,143.67x = 331,404.89 × 132,720.66
  4. Step 4: Simplify right side
    240,143.67x = 43,984,275,064.42
  5. Step 5: Solve for x
    x = 43,984,275,064.42/240,143.67
  6. Step 6: Final answer
    x = 183,158.17

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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.