Home / 179,215.11-247,314.89-98,640.90

Finding the Fourth Proportional to 179,215.11, 247,314.89 and 98,640.90

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Solution

The fourth proportional to 179,215.11, 247,314.89 and 98,640.90 is: 136,123.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,215.11 : 247,314.89 = 98,640.90 : x
  2. Step 2: Convert to fraction form
    179,215.11/247,314.89 = 98,640.90/x
  3. Step 3: Cross multiply
    179,215.11x = 247,314.89 × 98,640.90
  4. Step 4: Simplify right side
    179,215.11x = 24,395,361,603.22
  5. Step 5: Solve for x
    x = 24,395,361,603.22/179,215.11
  6. Step 6: Final answer
    x = 136,123.36

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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.