Home / 153,821.20-230,731.80-48,672.40

Finding the Fourth Proportional to 153,821.20, 230,731.80 and 48,672.40

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Solution

The fourth proportional to 153,821.20, 230,731.80 and 48,672.40 is: 73,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,821.20 : 230,731.80 = 48,672.40 : x
  2. Step 2: Convert to fraction form
    153,821.20/230,731.80 = 48,672.40/x
  3. Step 3: Cross multiply
    153,821.20x = 230,731.80 × 48,672.40
  4. Step 4: Simplify right side
    153,821.20x = 11,230,270,462.32
  5. Step 5: Solve for x
    x = 11,230,270,462.32/153,821.20
  6. Step 6: Final answer
    x = 73,008.60

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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.