Home / 143,117.54-215,705.02-123,365.44

Finding the Fourth Proportional to 143,117.54, 215,705.02 and 123,365.44

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Solution

The fourth proportional to 143,117.54, 215,705.02 and 123,365.44 is: 185,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,117.54 : 215,705.02 = 123,365.44 : x
  2. Step 2: Convert to fraction form
    143,117.54/215,705.02 = 123,365.44/x
  3. Step 3: Cross multiply
    143,117.54x = 215,705.02 × 123,365.44
  4. Step 4: Simplify right side
    143,117.54x = 26,610,543,854.83
  5. Step 5: Solve for x
    x = 26,610,543,854.83/143,117.54
  6. Step 6: Final answer
    x = 185,934.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.