Home / 145,426.52-218,144.66-40,236.68

Finding the Fourth Proportional to 145,426.52, 218,144.66 and 40,236.68

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Solution

The fourth proportional to 145,426.52, 218,144.66 and 40,236.68 is: 60,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,426.52 : 218,144.66 = 40,236.68 : x
  2. Step 2: Convert to fraction form
    145,426.52/218,144.66 = 40,236.68/x
  3. Step 3: Cross multiply
    145,426.52x = 218,144.66 × 40,236.68
  4. Step 4: Simplify right side
    145,426.52x = 8,777,416,878.13
  5. Step 5: Solve for x
    x = 8,777,416,878.13/145,426.52
  6. Step 6: Final answer
    x = 60,356.37

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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.