Home / 145,421.31-218,131.97-40,240.28

Finding the Fourth Proportional to 145,421.31, 218,131.97 and 40,240.28

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Solution

The fourth proportional to 145,421.31, 218,131.97 and 40,240.28 is: 60,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,421.31 : 218,131.97 = 40,240.28 : x
  2. Step 2: Convert to fraction form
    145,421.31/218,131.97 = 40,240.28/x
  3. Step 3: Cross multiply
    145,421.31x = 218,131.97 × 40,240.28
  4. Step 4: Simplify right side
    145,421.31x = 8,777,691,549.75
  5. Step 5: Solve for x
    x = 8,777,691,549.75/145,421.31
  6. Step 6: Final answer
    x = 60,360.42

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1.5x scale

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.