Home / 121,029.20-181,543.80-117,573.20

Finding the Fourth Proportional to 121,029.20, 181,543.80 and 117,573.20

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Solution

The fourth proportional to 121,029.20, 181,543.80 and 117,573.20 is: 176,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,029.20 : 181,543.80 = 117,573.20 : x
  2. Step 2: Convert to fraction form
    121,029.20/181,543.80 = 117,573.20/x
  3. Step 3: Cross multiply
    121,029.20x = 181,543.80 × 117,573.20
  4. Step 4: Simplify right side
    121,029.20x = 21,344,685,506.16
  5. Step 5: Solve for x
    x = 21,344,685,506.16/121,029.20
  6. Step 6: Final answer
    x = 176,359.80

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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.