Home / 142,002.09-212,956.89-47,206.85

Finding the Fourth Proportional to 142,002.09, 212,956.89 and 47,206.85

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Solution

The fourth proportional to 142,002.09, 212,956.89 and 47,206.85 is: 70,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,002.09 : 212,956.89 = 47,206.85 : x
  2. Step 2: Convert to fraction form
    142,002.09/212,956.89 = 47,206.85/x
  3. Step 3: Cross multiply
    142,002.09x = 212,956.89 × 47,206.85
  4. Step 4: Simplify right side
    142,002.09x = 10,053,023,962.70
  5. Step 5: Solve for x
    x = 10,053,023,962.70/142,002.09
  6. Step 6: Final answer
    x = 70,794.90

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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.