Home / 147,537.60-221,255.16-91,291.68

Finding the Fourth Proportional to 147,537.60, 221,255.16 and 91,291.68

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Solution

The fourth proportional to 147,537.60, 221,255.16 and 91,291.68 is: 136,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,537.60 : 221,255.16 = 91,291.68 : x
  2. Step 2: Convert to fraction form
    147,537.60/221,255.16 = 91,291.68/x
  3. Step 3: Cross multiply
    147,537.60x = 221,255.16 × 91,291.68
  4. Step 4: Simplify right side
    147,537.60x = 20,198,755,265.07
  5. Step 5: Solve for x
    x = 20,198,755,265.07/147,537.60
  6. Step 6: Final answer
    x = 136,905.81

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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.