Home / 168,760.20-253,140.30-153,985.80

Finding the Fourth Proportional to 168,760.20, 253,140.30 and 153,985.80

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Solution

The fourth proportional to 168,760.20, 253,140.30 and 153,985.80 is: 230,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,760.20 : 253,140.30 = 153,985.80 : x
  2. Step 2: Convert to fraction form
    168,760.20/253,140.30 = 153,985.80/x
  3. Step 3: Cross multiply
    168,760.20x = 253,140.30 × 153,985.80
  4. Step 4: Simplify right side
    168,760.20x = 38,980,011,607.74
  5. Step 5: Solve for x
    x = 38,980,011,607.74/168,760.20
  6. Step 6: Final answer
    x = 230,978.70

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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.