Home / 171,868.20-257,802.30-112,082.10

Finding the Fourth Proportional to 171,868.20, 257,802.30 and 112,082.10

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Solution

The fourth proportional to 171,868.20, 257,802.30 and 112,082.10 is: 168,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,868.20 : 257,802.30 = 112,082.10 : x
  2. Step 2: Convert to fraction form
    171,868.20/257,802.30 = 112,082.10/x
  3. Step 3: Cross multiply
    171,868.20x = 257,802.30 × 112,082.10
  4. Step 4: Simplify right side
    171,868.20x = 28,895,023,168.83
  5. Step 5: Solve for x
    x = 28,895,023,168.83/171,868.20
  6. Step 6: Final answer
    x = 168,123.15

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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.