Home / 98,228.22-135,511.83-66,385.50

Finding the Fourth Proportional to 98,228.22, 135,511.83 and 66,385.50

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Solution

The fourth proportional to 98,228.22, 135,511.83 and 66,385.50 is: 91,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,228.22 : 135,511.83 = 66,385.50 : x
  2. Step 2: Convert to fraction form
    98,228.22/135,511.83 = 66,385.50/x
  3. Step 3: Cross multiply
    98,228.22x = 135,511.83 × 66,385.50
  4. Step 4: Simplify right side
    98,228.22x = 8,996,020,590.47
  5. Step 5: Solve for x
    x = 8,996,020,590.47/98,228.22
  6. Step 6: Final answer
    x = 91,582.85

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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.