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Finding the Fourth Proportional to 159,978.04, 220,774.62 and 88,362.70

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Solution

The fourth proportional to 159,978.04, 220,774.62 and 88,362.70 is: 121,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,978.04 : 220,774.62 = 88,362.70 : x
  2. Step 2: Convert to fraction form
    159,978.04/220,774.62 = 88,362.70/x
  3. Step 3: Cross multiply
    159,978.04x = 220,774.62 × 88,362.70
  4. Step 4: Simplify right side
    159,978.04x = 19,508,241,514.67
  5. Step 5: Solve for x
    x = 19,508,241,514.67/159,978.04
  6. Step 6: Final answer
    x = 121,943.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.