Home / 147,491.60-221,237.40-136,086.80

Finding the Fourth Proportional to 147,491.60, 221,237.40 and 136,086.80

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Solution

The fourth proportional to 147,491.60, 221,237.40 and 136,086.80 is: 204,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,491.60 : 221,237.40 = 136,086.80 : x
  2. Step 2: Convert to fraction form
    147,491.60/221,237.40 = 136,086.80/x
  3. Step 3: Cross multiply
    147,491.60x = 221,237.40 × 136,086.80
  4. Step 4: Simplify right side
    147,491.60x = 30,107,489,806.32
  5. Step 5: Solve for x
    x = 30,107,489,806.32/147,491.60
  6. Step 6: Final answer
    x = 204,130.20

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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.