Home / 146,729.80-220,094.70-87,632.20

Finding the Fourth Proportional to 146,729.80, 220,094.70 and 87,632.20

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Solution

The fourth proportional to 146,729.80, 220,094.70 and 87,632.20 is: 131,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,729.80 : 220,094.70 = 87,632.20 : x
  2. Step 2: Convert to fraction form
    146,729.80/220,094.70 = 87,632.20/x
  3. Step 3: Cross multiply
    146,729.80x = 220,094.70 × 87,632.20
  4. Step 4: Simplify right side
    146,729.80x = 19,287,382,769.34
  5. Step 5: Solve for x
    x = 19,287,382,769.34/146,729.80
  6. Step 6: Final answer
    x = 131,448.30

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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.