Home / 172,557.12-258,715.59-76,442.13

Finding the Fourth Proportional to 172,557.12, 258,715.59 and 76,442.13

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Solution

The fourth proportional to 172,557.12, 258,715.59 and 76,442.13 is: 114,610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,557.12 : 258,715.59 = 76,442.13 : x
  2. Step 2: Convert to fraction form
    172,557.12/258,715.59 = 76,442.13/x
  3. Step 3: Cross multiply
    172,557.12x = 258,715.59 × 76,442.13
  4. Step 4: Simplify right side
    172,557.12x = 19,776,770,763.81
  5. Step 5: Solve for x
    x = 19,776,770,763.81/172,557.12
  6. Step 6: Final answer
    x = 114,610.00

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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.