Home / 143,918.02-215,860.20-38,728.72

Finding the Fourth Proportional to 143,918.02, 215,860.20 and 38,728.72

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Solution

The fourth proportional to 143,918.02, 215,860.20 and 38,728.72 is: 58,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,918.02 : 215,860.20 = 38,728.72 : x
  2. Step 2: Convert to fraction form
    143,918.02/215,860.20 = 38,728.72/x
  3. Step 3: Cross multiply
    143,918.02x = 215,860.20 × 38,728.72
  4. Step 4: Simplify right side
    143,918.02x = 8,359,989,244.94
  5. Step 5: Solve for x
    x = 8,359,989,244.94/143,918.02
  6. Step 6: Final answer
    x = 58,088.55

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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.