Home / 107,826.20-161,717.70-51,666.20

Finding the Fourth Proportional to 107,826.20, 161,717.70 and 51,666.20

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Solution

The fourth proportional to 107,826.20, 161,717.70 and 51,666.20 is: 77,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,826.20 : 161,717.70 = 51,666.20 : x
  2. Step 2: Convert to fraction form
    107,826.20/161,717.70 = 51,666.20/x
  3. Step 3: Cross multiply
    107,826.20x = 161,717.70 × 51,666.20
  4. Step 4: Simplify right side
    107,826.20x = 8,355,339,031.74
  5. Step 5: Solve for x
    x = 8,355,339,031.74/107,826.20
  6. Step 6: Final answer
    x = 77,488.95

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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.