Home / 147,619.20-221,428.80-102,348.30

Finding the Fourth Proportional to 147,619.20, 221,428.80 and 102,348.30

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Solution

The fourth proportional to 147,619.20, 221,428.80 and 102,348.30 is: 153,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.20 : 221,428.80 = 102,348.30 : x
  2. Step 2: Convert to fraction form
    147,619.20/221,428.80 = 102,348.30/x
  3. Step 3: Cross multiply
    147,619.20x = 221,428.80 × 102,348.30
  4. Step 4: Simplify right side
    147,619.20x = 22,662,861,251.04
  5. Step 5: Solve for x
    x = 22,662,861,251.04/147,619.20
  6. Step 6: Final answer
    x = 153,522.45

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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.