Home / 114,987.30-172,502.87-40,128.82

Finding the Fourth Proportional to 114,987.30, 172,502.87 and 40,128.82

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Solution

The fourth proportional to 114,987.30, 172,502.87 and 40,128.82 is: 60,200.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,987.30 : 172,502.87 = 40,128.82 : x
  2. Step 2: Convert to fraction form
    114,987.30/172,502.87 = 40,128.82/x
  3. Step 3: Cross multiply
    114,987.30x = 172,502.87 × 40,128.82
  4. Step 4: Simplify right side
    114,987.30x = 6,922,335,987.81
  5. Step 5: Solve for x
    x = 6,922,335,987.81/114,987.30
  6. Step 6: Final answer
    x = 60,200.88

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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.