Home / 120,207.51-180,367.97-53,641.71

Finding the Fourth Proportional to 120,207.51, 180,367.97 and 53,641.71

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Solution

The fourth proportional to 120,207.51, 180,367.97 and 53,641.71 is: 80,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,207.51 : 180,367.97 = 53,641.71 : x
  2. Step 2: Convert to fraction form
    120,207.51/180,367.97 = 53,641.71/x
  3. Step 3: Cross multiply
    120,207.51x = 180,367.97 × 53,641.71
  4. Step 4: Simplify right side
    120,207.51x = 9,675,246,071.82
  5. Step 5: Solve for x
    x = 9,675,246,071.82/120,207.51
  6. Step 6: Final answer
    x = 80,487.87

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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.