Home / 99,806.80-149,710.20-98,166.55

Finding the Fourth Proportional to 99,806.80, 149,710.20 and 98,166.55

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Solution

The fourth proportional to 99,806.80, 149,710.20 and 98,166.55 is: 147,249.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,806.80 : 149,710.20 = 98,166.55 : x
  2. Step 2: Convert to fraction form
    99,806.80/149,710.20 = 98,166.55/x
  3. Step 3: Cross multiply
    99,806.80x = 149,710.20 × 98,166.55
  4. Step 4: Simplify right side
    99,806.80x = 14,696,533,833.81
  5. Step 5: Solve for x
    x = 14,696,533,833.81/99,806.80
  6. Step 6: Final answer
    x = 147,249.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.