Home / 142,520.91-213,818.25-53,775.18

Finding the Fourth Proportional to 142,520.91, 213,818.25 and 53,775.18

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Solution

The fourth proportional to 142,520.91, 213,818.25 and 53,775.18 is: 80,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,520.91 : 213,818.25 = 53,775.18 : x
  2. Step 2: Convert to fraction form
    142,520.91/213,818.25 = 53,775.18/x
  3. Step 3: Cross multiply
    142,520.91x = 213,818.25 × 53,775.18
  4. Step 4: Simplify right side
    142,520.91x = 11,498,114,881.04
  5. Step 5: Solve for x
    x = 11,498,114,881.04/142,520.91
  6. Step 6: Final answer
    x = 80,676.69

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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.