Home / 202,765.20-279,813.04-112,119.16

Finding the Fourth Proportional to 202,765.20, 279,813.04 and 112,119.16

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Solution

The fourth proportional to 202,765.20, 279,813.04 and 112,119.16 is: 154,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,765.20 : 279,813.04 = 112,119.16 : x
  2. Step 2: Convert to fraction form
    202,765.20/279,813.04 = 112,119.16/x
  3. Step 3: Cross multiply
    202,765.20x = 279,813.04 × 112,119.16
  4. Step 4: Simplify right side
    202,765.20x = 31,372,403,001.85
  5. Step 5: Solve for x
    x = 31,372,403,001.85/202,765.20
  6. Step 6: Final answer
    x = 154,722.82

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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.