Home / 142,011.28-212,684.82-112,229.20

Finding the Fourth Proportional to 142,011.28, 212,684.82 and 112,229.20

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Solution

The fourth proportional to 142,011.28, 212,684.82 and 112,229.20 is: 168,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,011.28 : 212,684.82 = 112,229.20 : x
  2. Step 2: Convert to fraction form
    142,011.28/212,684.82 = 112,229.20/x
  3. Step 3: Cross multiply
    142,011.28x = 212,684.82 × 112,229.20
  4. Step 4: Simplify right side
    142,011.28x = 23,869,447,200.74
  5. Step 5: Solve for x
    x = 23,869,447,200.74/142,011.28
  6. Step 6: Final answer
    x = 168,081.35

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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.