Home / 185,713.76-256,300.92-105,155.48

Finding the Fourth Proportional to 185,713.76, 256,300.92 and 105,155.48

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Solution

The fourth proportional to 185,713.76, 256,300.92 and 105,155.48 is: 145,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,713.76 : 256,300.92 = 105,155.48 : x
  2. Step 2: Convert to fraction form
    185,713.76/256,300.92 = 105,155.48/x
  3. Step 3: Cross multiply
    185,713.76x = 256,300.92 × 105,155.48
  4. Step 4: Simplify right side
    185,713.76x = 26,951,446,267.04
  5. Step 5: Solve for x
    x = 26,951,446,267.04/185,713.76
  6. Step 6: Final answer
    x = 145,123.58

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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.