Home / 147,690.90-203,780.52-87,220.26

Finding the Fourth Proportional to 147,690.90, 203,780.52 and 87,220.26

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Solution

The fourth proportional to 147,690.90, 203,780.52 and 87,220.26 is: 120,344.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,690.90 : 203,780.52 = 87,220.26 : x
  2. Step 2: Convert to fraction form
    147,690.90/203,780.52 = 87,220.26/x
  3. Step 3: Cross multiply
    147,690.90x = 203,780.52 × 87,220.26
  4. Step 4: Simplify right side
    147,690.90x = 17,773,789,937.34
  5. Step 5: Solve for x
    x = 17,773,789,937.34/147,690.90
  6. Step 6: Final answer
    x = 120,344.52

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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.