Home / 147,159.40-220,301.70-87,964.60

Finding the Fourth Proportional to 147,159.40, 220,301.70 and 87,964.60

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Solution

The fourth proportional to 147,159.40, 220,301.70 and 87,964.60 is: 131,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,159.40 : 220,301.70 = 87,964.60 : x
  2. Step 2: Convert to fraction form
    147,159.40/220,301.70 = 87,964.60/x
  3. Step 3: Cross multiply
    147,159.40x = 220,301.70 × 87,964.60
  4. Step 4: Simplify right side
    147,159.40x = 19,378,750,919.82
  5. Step 5: Solve for x
    x = 19,378,750,919.82/147,159.40
  6. Step 6: Final answer
    x = 131,685.44

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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.