Home / 103,710.32-155,530.88-40,514.07

Finding the Fourth Proportional to 103,710.32, 155,530.88 and 40,514.07

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Solution

The fourth proportional to 103,710.32, 155,530.88 and 40,514.07 is: 60,757.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,710.32 : 155,530.88 = 40,514.07 : x
  2. Step 2: Convert to fraction form
    103,710.32/155,530.88 = 40,514.07/x
  3. Step 3: Cross multiply
    103,710.32x = 155,530.88 × 40,514.07
  4. Step 4: Simplify right side
    103,710.32x = 6,301,189,719.97
  5. Step 5: Solve for x
    x = 6,301,189,719.97/103,710.32
  6. Step 6: Final answer
    x = 60,757.59

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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.