Home / 147,520.90-203,543.85-83,853.69

Finding the Fourth Proportional to 147,520.90, 203,543.85 and 83,853.69

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Solution

The fourth proportional to 147,520.90, 203,543.85 and 83,853.69 is: 115,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,520.90 : 203,543.85 = 83,853.69 : x
  2. Step 2: Convert to fraction form
    147,520.90/203,543.85 = 83,853.69/x
  3. Step 3: Cross multiply
    147,520.90x = 203,543.85 × 83,853.69
  4. Step 4: Simplify right side
    147,520.90x = 17,067,902,899.31
  5. Step 5: Solve for x
    x = 17,067,902,899.31/147,520.90
  6. Step 6: Final answer
    x = 115,698.20

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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.