Home / 110,112.32-151,871.28-76,177.28

Finding the Fourth Proportional to 110,112.32, 151,871.28 and 76,177.28

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Solution

The fourth proportional to 110,112.32, 151,871.28 and 76,177.28 is: 105,066.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,112.32 : 151,871.28 = 76,177.28 : x
  2. Step 2: Convert to fraction form
    110,112.32/151,871.28 = 76,177.28/x
  3. Step 3: Cross multiply
    110,112.32x = 151,871.28 × 76,177.28
  4. Step 4: Simplify right side
    110,112.32x = 11,569,141,020.52
  5. Step 5: Solve for x
    x = 11,569,141,020.52/110,112.32
  6. Step 6: Final answer
    x = 105,066.73

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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.