Home / 125,600.23-188,560.27-81,411.89

Finding the Fourth Proportional to 125,600.23, 188,560.27 and 81,411.89

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Solution

The fourth proportional to 125,600.23, 188,560.27 and 81,411.89 is: 122,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,600.23 : 188,560.27 = 81,411.89 : x
  2. Step 2: Convert to fraction form
    125,600.23/188,560.27 = 81,411.89/x
  3. Step 3: Cross multiply
    125,600.23x = 188,560.27 × 81,411.89
  4. Step 4: Simplify right side
    125,600.23x = 15,351,047,959.61
  5. Step 5: Solve for x
    x = 15,351,047,959.61/125,600.23
  6. Step 6: Final answer
    x = 122,221.50

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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.