Home / 215,939.56-297,990.18-120,444.10

Finding the Fourth Proportional to 215,939.56, 297,990.18 and 120,444.10

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Solution

The fourth proportional to 215,939.56, 297,990.18 and 120,444.10 is: 166,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,939.56 : 297,990.18 = 120,444.10 : x
  2. Step 2: Convert to fraction form
    215,939.56/297,990.18 = 120,444.10/x
  3. Step 3: Cross multiply
    215,939.56x = 297,990.18 × 120,444.10
  4. Step 4: Simplify right side
    215,939.56x = 35,891,159,038.94
  5. Step 5: Solve for x
    x = 35,891,159,038.94/215,939.56
  6. Step 6: Final answer
    x = 166,209.28

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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.