Home / 98,611.40-136,149.38-58,338.06

Finding the Fourth Proportional to 98,611.40, 136,149.38 and 58,338.06

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Solution

The fourth proportional to 98,611.40, 136,149.38 and 58,338.06 is: 80,545.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,611.40 : 136,149.38 = 58,338.06 : x
  2. Step 2: Convert to fraction form
    98,611.40/136,149.38 = 58,338.06/x
  3. Step 3: Cross multiply
    98,611.40x = 136,149.38 × 58,338.06
  4. Step 4: Simplify right side
    98,611.40x = 7,942,690,407.71
  5. Step 5: Solve for x
    x = 7,942,690,407.71/98,611.40
  6. Step 6: Final answer
    x = 80,545.36

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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.