Home / 185,917.20-256,565.02-105,360.08

Finding the Fourth Proportional to 185,917.20, 256,565.02 and 105,360.08

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Solution

The fourth proportional to 185,917.20, 256,565.02 and 105,360.08 is: 145,396.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,917.20 : 256,565.02 = 105,360.08 : x
  2. Step 2: Convert to fraction form
    185,917.20/256,565.02 = 105,360.08/x
  3. Step 3: Cross multiply
    185,917.20x = 256,565.02 × 105,360.08
  4. Step 4: Simplify right side
    185,917.20x = 27,031,711,032.40
  5. Step 5: Solve for x
    x = 27,031,711,032.40/185,917.20
  6. Step 6: Final answer
    x = 145,396.50

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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.