Home / 136,860.30-205,313.13-48,090.78

Finding the Fourth Proportional to 136,860.30, 205,313.13 and 48,090.78

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Solution

The fourth proportional to 136,860.30, 205,313.13 and 48,090.78 is: 72,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,860.30 : 205,313.13 = 48,090.78 : x
  2. Step 2: Convert to fraction form
    136,860.30/205,313.13 = 48,090.78/x
  3. Step 3: Cross multiply
    136,860.30x = 205,313.13 × 48,090.78
  4. Step 4: Simplify right side
    136,860.30x = 9,873,668,565.94
  5. Step 5: Solve for x
    x = 9,873,668,565.94/136,860.30
  6. Step 6: Final answer
    x = 72,144.14

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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.