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Finding the Fourth Proportional to 109,768, 151,482.48 and 67,301.92

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Solution

The fourth proportional to 109,768, 151,482.48 and 67,301.92 is: 92,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,768 : 151,482.48 = 67,301.92 : x
  2. Step 2: Convert to fraction form
    109,768/151,482.48 = 67,301.92/x
  3. Step 3: Cross multiply
    109,768x = 151,482.48 × 67,301.92
  4. Step 4: Simplify right side
    109,768x = 10,195,061,750.36
  5. Step 5: Solve for x
    x = 10,195,061,750.36/109,768
  6. Step 6: Final answer
    x = 92,878.27

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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.