Home / 120,226.10-165,882.21-77,733.50

Finding the Fourth Proportional to 120,226.10, 165,882.21 and 77,733.50

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Solution

The fourth proportional to 120,226.10, 165,882.21 and 77,733.50 is: 107,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,226.10 : 165,882.21 = 77,733.50 : x
  2. Step 2: Convert to fraction form
    120,226.10/165,882.21 = 77,733.50/x
  3. Step 3: Cross multiply
    120,226.10x = 165,882.21 × 77,733.50
  4. Step 4: Simplify right side
    120,226.10x = 12,894,604,771.04
  5. Step 5: Solve for x
    x = 12,894,604,771.04/120,226.10
  6. Step 6: Final answer
    x = 107,252.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.