Home / 102,015.35-140,789.04-56,697.06

Finding the Fourth Proportional to 102,015.35, 140,789.04 and 56,697.06

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Solution

The fourth proportional to 102,015.35, 140,789.04 and 56,697.06 is: 78,246.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.35 : 140,789.04 = 56,697.06 : x
  2. Step 2: Convert to fraction form
    102,015.35/140,789.04 = 56,697.06/x
  3. Step 3: Cross multiply
    102,015.35x = 140,789.04 × 56,697.06
  4. Step 4: Simplify right side
    102,015.35x = 7,982,324,963.57
  5. Step 5: Solve for x
    x = 7,982,324,963.57/102,015.35
  6. Step 6: Final answer
    x = 78,246.31

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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.