Home / 145,531.44-218,381-61,285.04

Finding the Fourth Proportional to 145,531.44, 218,381 and 61,285.04

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Solution

The fourth proportional to 145,531.44, 218,381 and 61,285.04 is: 91,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,531.44 : 218,381 = 61,285.04 : x
  2. Step 2: Convert to fraction form
    145,531.44/218,381 = 61,285.04/x
  3. Step 3: Cross multiply
    145,531.44x = 218,381 × 61,285.04
  4. Step 4: Simplify right side
    145,531.44x = 13,383,488,320.24
  5. Step 5: Solve for x
    x = 13,383,488,320.24/145,531.44
  6. Step 6: Final answer
    x = 91,962.87

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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.