Home / 142,050.70-213,020.66-53,255.76

Finding the Fourth Proportional to 142,050.70, 213,020.66 and 53,255.76

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Solution

The fourth proportional to 142,050.70, 213,020.66 and 53,255.76 is: 79,862.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,050.70 : 213,020.66 = 53,255.76 : x
  2. Step 2: Convert to fraction form
    142,050.70/213,020.66 = 53,255.76/x
  3. Step 3: Cross multiply
    142,050.70x = 213,020.66 × 53,255.76
  4. Step 4: Simplify right side
    142,050.70x = 11,344,577,144.00
  5. Step 5: Solve for x
    x = 11,344,577,144.00/142,050.70
  6. Step 6: Final answer
    x = 79,862.87

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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.