Home / 142,012.28-212,686.32-112,230.20

Finding the Fourth Proportional to 142,012.28, 212,686.32 and 112,230.20

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Solution

The fourth proportional to 142,012.28, 212,686.32 and 112,230.20 is: 168,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,012.28 : 212,686.32 = 112,230.20 : x
  2. Step 2: Convert to fraction form
    142,012.28/212,686.32 = 112,230.20/x
  3. Step 3: Cross multiply
    142,012.28x = 212,686.32 × 112,230.20
  4. Step 4: Simplify right side
    142,012.28x = 23,869,828,230.86
  5. Step 5: Solve for x
    x = 23,869,828,230.86/142,012.28
  6. Step 6: Final answer
    x = 168,082.85

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1.5x scale

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.