Home / 163,543.80-245,085.30-121,092.60

Finding the Fourth Proportional to 163,543.80, 245,085.30 and 121,092.60

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Solution

The fourth proportional to 163,543.80, 245,085.30 and 121,092.60 is: 181,468.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,543.80 : 245,085.30 = 121,092.60 : x
  2. Step 2: Convert to fraction form
    163,543.80/245,085.30 = 121,092.60/x
  3. Step 3: Cross multiply
    163,543.80x = 245,085.30 × 121,092.60
  4. Step 4: Simplify right side
    163,543.80x = 29,678,016,198.78
  5. Step 5: Solve for x
    x = 29,678,016,198.78/163,543.80
  6. Step 6: Final answer
    x = 181,468.31

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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.