Home / 115,376.28-159,221.34-67,664.04

Finding the Fourth Proportional to 115,376.28, 159,221.34 and 67,664.04

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Solution

The fourth proportional to 115,376.28, 159,221.34 and 67,664.04 is: 93,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,376.28 : 159,221.34 = 67,664.04 : x
  2. Step 2: Convert to fraction form
    115,376.28/159,221.34 = 67,664.04/x
  3. Step 3: Cross multiply
    115,376.28x = 159,221.34 × 67,664.04
  4. Step 4: Simplify right side
    115,376.28x = 10,773,559,118.61
  5. Step 5: Solve for x
    x = 10,773,559,118.61/115,376.28
  6. Step 6: Final answer
    x = 93,377.59

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1.5x scale

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.