Home / 215,510.11-297,382.66-120,025.69

Finding the Fourth Proportional to 215,510.11, 297,382.66 and 120,025.69

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Solution

The fourth proportional to 215,510.11, 297,382.66 and 120,025.69 is: 165,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,510.11 : 297,382.66 = 120,025.69 : x
  2. Step 2: Convert to fraction form
    215,510.11/297,382.66 = 120,025.69/x
  3. Step 3: Cross multiply
    215,510.11x = 297,382.66 × 120,025.69
  4. Step 4: Simplify right side
    215,510.11x = 35,693,558,960.54
  5. Step 5: Solve for x
    x = 35,693,558,960.54/215,510.11
  6. Step 6: Final answer
    x = 165,623.59

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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.