Home / 86,143.38-129,214.60-22,970.06

Finding the Fourth Proportional to 86,143.38, 129,214.60 and 22,970.06

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Solution

The fourth proportional to 86,143.38, 129,214.60 and 22,970.06 is: 34,454.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,143.38 : 129,214.60 = 22,970.06 : x
  2. Step 2: Convert to fraction form
    86,143.38/129,214.60 = 22,970.06/x
  3. Step 3: Cross multiply
    86,143.38x = 129,214.60 × 22,970.06
  4. Step 4: Simplify right side
    86,143.38x = 2,968,067,114.88
  5. Step 5: Solve for x
    x = 2,968,067,114.88/86,143.38
  6. Step 6: Final answer
    x = 34,454.96

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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.