Home / 95,036.51-142,456.34-78,219.86

Finding the Fourth Proportional to 95,036.51, 142,456.34 and 78,219.86

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Solution

The fourth proportional to 95,036.51, 142,456.34 and 78,219.86 is: 117,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,036.51 : 142,456.34 = 78,219.86 : x
  2. Step 2: Convert to fraction form
    95,036.51/142,456.34 = 78,219.86/x
  3. Step 3: Cross multiply
    95,036.51x = 142,456.34 × 78,219.86
  4. Step 4: Simplify right side
    95,036.51x = 11,142,913,867.53
  5. Step 5: Solve for x
    x = 11,142,913,867.53/95,036.51
  6. Step 6: Final answer
    x = 117,248.78

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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.