Home / 151,764.94-209,437.32-83,781.96

Finding the Fourth Proportional to 151,764.94, 209,437.32 and 83,781.96

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Solution

The fourth proportional to 151,764.94, 209,437.32 and 83,781.96 is: 115,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,764.94 : 209,437.32 = 83,781.96 : x
  2. Step 2: Convert to fraction form
    151,764.94/209,437.32 = 83,781.96/x
  3. Step 3: Cross multiply
    151,764.94x = 209,437.32 × 83,781.96
  4. Step 4: Simplify right side
    151,764.94x = 17,547,069,166.75
  5. Step 5: Solve for x
    x = 17,547,069,166.75/151,764.94
  6. Step 6: Final answer
    x = 115,620.04

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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.