Home / 115,035.72-172,595.10-40,166.90

Finding the Fourth Proportional to 115,035.72, 172,595.10 and 40,166.90

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Solution

The fourth proportional to 115,035.72, 172,595.10 and 40,166.90 is: 60,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,035.72 : 172,595.10 = 40,166.90 : x
  2. Step 2: Convert to fraction form
    115,035.72/172,595.10 = 40,166.90/x
  3. Step 3: Cross multiply
    115,035.72x = 172,595.10 × 40,166.90
  4. Step 4: Simplify right side
    115,035.72x = 6,932,610,122.19
  5. Step 5: Solve for x
    x = 6,932,610,122.19/115,035.72
  6. Step 6: Final answer
    x = 60,264.85

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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.