Home / 131,836.28-181,934.51-71,406.77

Finding the Fourth Proportional to 131,836.28, 181,934.51 and 71,406.77

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Solution

The fourth proportional to 131,836.28, 181,934.51 and 71,406.77 is: 98,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,836.28 : 181,934.51 = 71,406.77 : x
  2. Step 2: Convert to fraction form
    131,836.28/181,934.51 = 71,406.77/x
  3. Step 3: Cross multiply
    131,836.28x = 181,934.51 × 71,406.77
  4. Step 4: Simplify right side
    131,836.28x = 12,991,354,443.93
  5. Step 5: Solve for x
    x = 12,991,354,443.93/131,836.28
  6. Step 6: Final answer
    x = 98,541.58

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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.