Home / 120,889.38-181,364.83-71,011.66

Finding the Fourth Proportional to 120,889.38, 181,364.83 and 71,011.66

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Solution

The fourth proportional to 120,889.38, 181,364.83 and 71,011.66 is: 106,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,889.38 : 181,364.83 = 71,011.66 : x
  2. Step 2: Convert to fraction form
    120,889.38/181,364.83 = 71,011.66/x
  3. Step 3: Cross multiply
    120,889.38x = 181,364.83 × 71,011.66
  4. Step 4: Simplify right side
    120,889.38x = 12,879,017,643.92
  5. Step 5: Solve for x
    x = 12,879,017,643.92/120,889.38
  6. Step 6: Final answer
    x = 106,535.56

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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.