Home / 109,991.28-151,788.60-59,690.64

Finding the Fourth Proportional to 109,991.28, 151,788.60 and 59,690.64

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Solution

The fourth proportional to 109,991.28, 151,788.60 and 59,690.64 is: 82,373.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,991.28 : 151,788.60 = 59,690.64 : x
  2. Step 2: Convert to fraction form
    109,991.28/151,788.60 = 59,690.64/x
  3. Step 3: Cross multiply
    109,991.28x = 151,788.60 × 59,690.64
  4. Step 4: Simplify right side
    109,991.28x = 9,060,358,678.70
  5. Step 5: Solve for x
    x = 9,060,358,678.70/109,991.28
  6. Step 6: Final answer
    x = 82,373.43

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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.