Home / 86,104.20-129,029.94-61,192.20

Finding the Fourth Proportional to 86,104.20, 129,029.94 and 61,192.20

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Solution

The fourth proportional to 86,104.20, 129,029.94 and 61,192.20 is: 91,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,104.20 : 129,029.94 = 61,192.20 : x
  2. Step 2: Convert to fraction form
    86,104.20/129,029.94 = 61,192.20/x
  3. Step 3: Cross multiply
    86,104.20x = 129,029.94 × 61,192.20
  4. Step 4: Simplify right side
    86,104.20x = 7,895,625,894.47
  5. Step 5: Solve for x
    x = 7,895,625,894.47/86,104.20
  6. Step 6: Final answer
    x = 91,698.50

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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.