Home / 142,320.70-213,423.45-48,778.30

Finding the Fourth Proportional to 142,320.70, 213,423.45 and 48,778.30

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Solution

The fourth proportional to 142,320.70, 213,423.45 and 48,778.30 is: 73,147.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320.70 : 213,423.45 = 48,778.30 : x
  2. Step 2: Convert to fraction form
    142,320.70/213,423.45 = 48,778.30/x
  3. Step 3: Cross multiply
    142,320.70x = 213,423.45 × 48,778.30
  4. Step 4: Simplify right side
    142,320.70x = 10,410,433,071.14
  5. Step 5: Solve for x
    x = 10,410,433,071.14/142,320.70
  6. Step 6: Final answer
    x = 73,147.71

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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.