Home / 98,111.32-135,434.74-66,323.28

Finding the Fourth Proportional to 98,111.32, 135,434.74 and 66,323.28

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Solution

The fourth proportional to 98,111.32, 135,434.74 and 66,323.28 is: 91,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,111.32 : 135,434.74 = 66,323.28 : x
  2. Step 2: Convert to fraction form
    98,111.32/135,434.74 = 66,323.28/x
  3. Step 3: Cross multiply
    98,111.32x = 135,434.74 × 66,323.28
  4. Step 4: Simplify right side
    98,111.32x = 8,982,476,182.75
  5. Step 5: Solve for x
    x = 8,982,476,182.75/98,111.32
  6. Step 6: Final answer
    x = 91,553.92

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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.