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Finding the Fourth Proportional to 109,778.78, 151,494.36 and 59,477.78

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Solution

The fourth proportional to 109,778.78, 151,494.36 and 59,477.78 is: 82,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,778.78 : 151,494.36 = 59,477.78 : x
  2. Step 2: Convert to fraction form
    109,778.78/151,494.36 = 59,477.78/x
  3. Step 3: Cross multiply
    109,778.78x = 151,494.36 × 59,477.78
  4. Step 4: Simplify right side
    109,778.78x = 9,010,548,215.32
  5. Step 5: Solve for x
    x = 9,010,548,215.32/109,778.78
  6. Step 6: Final answer
    x = 82,079.14

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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.