Home / 172,775.05-258,985.02-66,134

Finding the Fourth Proportional to 172,775.05, 258,985.02 and 66,134

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Solution

The fourth proportional to 172,775.05, 258,985.02 and 66,134 is: 99,133.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,775.05 : 258,985.02 = 66,134 : x
  2. Step 2: Convert to fraction form
    172,775.05/258,985.02 = 66,134/x
  3. Step 3: Cross multiply
    172,775.05x = 258,985.02 × 66,134
  4. Step 4: Simplify right side
    172,775.05x = 17,127,715,312.68
  5. Step 5: Solve for x
    x = 17,127,715,312.68/172,775.05
  6. Step 6: Final answer
    x = 99,133.04

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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.