Home / 153,003.40-229,440.30-74,141.80

Finding the Fourth Proportional to 153,003.40, 229,440.30 and 74,141.80

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Solution

The fourth proportional to 153,003.40, 229,440.30 and 74,141.80 is: 111,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,003.40 : 229,440.30 = 74,141.80 : x
  2. Step 2: Convert to fraction form
    153,003.40/229,440.30 = 74,141.80/x
  3. Step 3: Cross multiply
    153,003.40x = 229,440.30 × 74,141.80
  4. Step 4: Simplify right side
    153,003.40x = 17,011,116,834.54
  5. Step 5: Solve for x
    x = 17,011,116,834.54/153,003.40
  6. Step 6: Final answer
    x = 111,181.30

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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.