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Finding the Fourth Proportional to 109,866.36, 151,621.38 and 69,565.44

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Solution

The fourth proportional to 109,866.36, 151,621.38 and 69,565.44 is: 96,003.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,866.36 : 151,621.38 = 69,565.44 : x
  2. Step 2: Convert to fraction form
    109,866.36/151,621.38 = 69,565.44/x
  3. Step 3: Cross multiply
    109,866.36x = 151,621.38 × 69,565.44
  4. Step 4: Simplify right side
    109,866.36x = 10,547,608,013.11
  5. Step 5: Solve for x
    x = 10,547,608,013.11/109,866.36
  6. Step 6: Final answer
    x = 96,003.98

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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.