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Finding the Fourth Proportional to 159,199.52, 219,697.16 and 91,215.13

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Solution

The fourth proportional to 159,199.52, 219,697.16 and 91,215.13 is: 125,877.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,199.52 : 219,697.16 = 91,215.13 : x
  2. Step 2: Convert to fraction form
    159,199.52/219,697.16 = 91,215.13/x
  3. Step 3: Cross multiply
    159,199.52x = 219,697.16 × 91,215.13
  4. Step 4: Simplify right side
    159,199.52x = 20,039,705,010.03
  5. Step 5: Solve for x
    x = 20,039,705,010.03/159,199.52
  6. Step 6: Final answer
    x = 125,877.92

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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.