Home / 243,743.28-365,614.20-85,933.68

Finding the Fourth Proportional to 243,743.28, 365,614.20 and 85,933.68

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Solution

The fourth proportional to 243,743.28, 365,614.20 and 85,933.68 is: 128,900.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,743.28 : 365,614.20 = 85,933.68 : x
  2. Step 2: Convert to fraction form
    243,743.28/365,614.20 = 85,933.68/x
  3. Step 3: Cross multiply
    243,743.28x = 365,614.20 × 85,933.68
  4. Step 4: Simplify right side
    243,743.28x = 31,418,573,666.26
  5. Step 5: Solve for x
    x = 31,418,573,666.26/243,743.28
  6. Step 6: Final answer
    x = 128,900.27

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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.