Home / 109,616.42-151,283.43-91,186.98

Finding the Fourth Proportional to 109,616.42, 151,283.43 and 91,186.98

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Solution

The fourth proportional to 109,616.42, 151,283.43 and 91,186.98 is: 125,848.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,616.42 : 151,283.43 = 91,186.98 : x
  2. Step 2: Convert to fraction form
    109,616.42/151,283.43 = 91,186.98/x
  3. Step 3: Cross multiply
    109,616.42x = 151,283.43 × 91,186.98
  4. Step 4: Simplify right side
    109,616.42x = 13,795,079,105.74
  5. Step 5: Solve for x
    x = 13,795,079,105.74/109,616.42
  6. Step 6: Final answer
    x = 125,848.66

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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.