Home / 124,170.84-171,556.50-86,612.76

Finding the Fourth Proportional to 124,170.84, 171,556.50 and 86,612.76

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Solution

The fourth proportional to 124,170.84, 171,556.50 and 86,612.76 is: 119,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,170.84 : 171,556.50 = 86,612.76 : x
  2. Step 2: Convert to fraction form
    124,170.84/171,556.50 = 86,612.76/x
  3. Step 3: Cross multiply
    124,170.84x = 171,556.50 × 86,612.76
  4. Step 4: Simplify right side
    124,170.84x = 14,858,981,960.94
  5. Step 5: Solve for x
    x = 14,858,981,960.94/124,170.84
  6. Step 6: Final answer
    x = 119,665.63

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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.