Home / 185,713.24-256,290.06-105,139.30

Finding the Fourth Proportional to 185,713.24, 256,290.06 and 105,139.30

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Solution

The fourth proportional to 185,713.24, 256,290.06 and 105,139.30 is: 145,095.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,713.24 : 256,290.06 = 105,139.30 : x
  2. Step 2: Convert to fraction form
    185,713.24/256,290.06 = 105,139.30/x
  3. Step 3: Cross multiply
    185,713.24x = 256,290.06 × 105,139.30
  4. Step 4: Simplify right side
    185,713.24x = 26,946,157,505.36
  5. Step 5: Solve for x
    x = 26,946,157,505.36/185,713.24
  6. Step 6: Final answer
    x = 145,095.51

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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.