Home / 155,929.32-215,133.35-95,436.90

Finding the Fourth Proportional to 155,929.32, 215,133.35 and 95,436.90

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Solution

The fourth proportional to 155,929.32, 215,133.35 and 95,436.90 is: 131,672.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,929.32 : 215,133.35 = 95,436.90 : x
  2. Step 2: Convert to fraction form
    155,929.32/215,133.35 = 95,436.90/x
  3. Step 3: Cross multiply
    155,929.32x = 215,133.35 × 95,436.90
  4. Step 4: Simplify right side
    155,929.32x = 20,531,660,071.26
  5. Step 5: Solve for x
    x = 20,531,660,071.26/155,929.32
  6. Step 6: Final answer
    x = 131,672.86

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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.