Home / 147,242.85-203,196.12-83,581.71

Finding the Fourth Proportional to 147,242.85, 203,196.12 and 83,581.71

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Solution

The fourth proportional to 147,242.85, 203,196.12 and 83,581.71 is: 115,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,242.85 : 203,196.12 = 83,581.71 : x
  2. Step 2: Convert to fraction form
    147,242.85/203,196.12 = 83,581.71/x
  3. Step 3: Cross multiply
    147,242.85x = 203,196.12 × 83,581.71
  4. Step 4: Simplify right side
    147,242.85x = 16,983,479,174.97
  5. Step 5: Solve for x
    x = 16,983,479,174.97/147,242.85
  6. Step 6: Final answer
    x = 115,343.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.