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Finding the Fourth Proportional to 153,970.20, 230,987.70 and 48,799.80

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Solution

The fourth proportional to 153,970.20, 230,987.70 and 48,799.80 is: 73,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,970.20 : 230,987.70 = 48,799.80 : x
  2. Step 2: Convert to fraction form
    153,970.20/230,987.70 = 48,799.80/x
  3. Step 3: Cross multiply
    153,970.20x = 230,987.70 × 48,799.80
  4. Step 4: Simplify right side
    153,970.20x = 11,272,153,562.46
  5. Step 5: Solve for x
    x = 11,272,153,562.46/153,970.20
  6. Step 6: Final answer
    x = 73,209.97

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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.