Home / 155,950.22-215,211.38-84,330.29

Finding the Fourth Proportional to 155,950.22, 215,211.38 and 84,330.29

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Solution

The fourth proportional to 155,950.22, 215,211.38 and 84,330.29 is: 116,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,950.22 : 215,211.38 = 84,330.29 : x
  2. Step 2: Convert to fraction form
    155,950.22/215,211.38 = 84,330.29/x
  3. Step 3: Cross multiply
    155,950.22x = 215,211.38 × 84,330.29
  4. Step 4: Simplify right side
    155,950.22x = 18,148,836,588.99
  5. Step 5: Solve for x
    x = 18,148,836,588.99/155,950.22
  6. Step 6: Final answer
    x = 116,375.84

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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.