Home / 147,044.40-220,129.20-87,849.60

Finding the Fourth Proportional to 147,044.40, 220,129.20 and 87,849.60

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Solution

The fourth proportional to 147,044.40, 220,129.20 and 87,849.60 is: 131,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,044.40 : 220,129.20 = 87,849.60 : x
  2. Step 2: Convert to fraction form
    147,044.40/220,129.20 = 87,849.60/x
  3. Step 3: Cross multiply
    147,044.40x = 220,129.20 × 87,849.60
  4. Step 4: Simplify right side
    147,044.40x = 19,338,262,168.32
  5. Step 5: Solve for x
    x = 19,338,262,168.32/147,044.40
  6. Step 6: Final answer
    x = 131,513.08

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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.