Home / 195,111.30-292,606.20-76,818.90

Finding the Fourth Proportional to 195,111.30, 292,606.20 and 76,818.90

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Solution

The fourth proportional to 195,111.30, 292,606.20 and 76,818.90 is: 115,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,111.30 : 292,606.20 = 76,818.90 : x
  2. Step 2: Convert to fraction form
    195,111.30/292,606.20 = 76,818.90/x
  3. Step 3: Cross multiply
    195,111.30x = 292,606.20 × 76,818.90
  4. Step 4: Simplify right side
    195,111.30x = 22,477,686,417.18
  5. Step 5: Solve for x
    x = 22,477,686,417.18/195,111.30
  6. Step 6: Final answer
    x = 115,204.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.