Home / 172,618.18-258,959.94-67,430.50

Finding the Fourth Proportional to 172,618.18, 258,959.94 and 67,430.50

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Solution

The fourth proportional to 172,618.18, 258,959.94 and 67,430.50 is: 101,158.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,618.18 : 258,959.94 = 67,430.50 : x
  2. Step 2: Convert to fraction form
    172,618.18/258,959.94 = 67,430.50/x
  3. Step 3: Cross multiply
    172,618.18x = 258,959.94 × 67,430.50
  4. Step 4: Simplify right side
    172,618.18x = 17,461,798,234.17
  5. Step 5: Solve for x
    x = 17,461,798,234.17/172,618.18
  6. Step 6: Final answer
    x = 101,158.51

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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.