Home / 172,895.16-258,875.10-89,614.20

Finding the Fourth Proportional to 172,895.16, 258,875.10 and 89,614.20

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Solution

The fourth proportional to 172,895.16, 258,875.10 and 89,614.20 is: 134,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,895.16 : 258,875.10 = 89,614.20 : x
  2. Step 2: Convert to fraction form
    172,895.16/258,875.10 = 89,614.20/x
  3. Step 3: Cross multiply
    172,895.16x = 258,875.10 × 89,614.20
  4. Step 4: Simplify right side
    172,895.16x = 23,198,884,986.42
  5. Step 5: Solve for x
    x = 23,198,884,986.42/172,895.16
  6. Step 6: Final answer
    x = 134,178.92

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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.