Home / 172,559.90-258,915.18-60,320.66

Finding the Fourth Proportional to 172,559.90, 258,915.18 and 60,320.66

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Solution

The fourth proportional to 172,559.90, 258,915.18 and 60,320.66 is: 90,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,559.90 : 258,915.18 = 60,320.66 : x
  2. Step 2: Convert to fraction form
    172,559.90/258,915.18 = 60,320.66/x
  3. Step 3: Cross multiply
    172,559.90x = 258,915.18 × 60,320.66
  4. Step 4: Simplify right side
    172,559.90x = 15,617,934,541.62
  5. Step 5: Solve for x
    x = 15,617,934,541.62/172,559.90
  6. Step 6: Final answer
    x = 90,507.32

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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.