Home / 102,549.29-153,823.25-55,186.66

Finding the Fourth Proportional to 102,549.29, 153,823.25 and 55,186.66

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Solution

The fourth proportional to 102,549.29, 153,823.25 and 55,186.66 is: 82,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,549.29 : 153,823.25 = 55,186.66 : x
  2. Step 2: Convert to fraction form
    102,549.29/153,823.25 = 55,186.66/x
  3. Step 3: Cross multiply
    102,549.29x = 153,823.25 × 55,186.66
  4. Step 4: Simplify right side
    102,549.29x = 8,488,991,836.72
  5. Step 5: Solve for x
    x = 8,488,991,836.72/102,549.29
  6. Step 6: Final answer
    x = 82,779.63

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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.