Home / 102,023.28-140,791.50-56,700.54

Finding the Fourth Proportional to 102,023.28, 140,791.50 and 56,700.54

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Solution

The fourth proportional to 102,023.28, 140,791.50 and 56,700.54 is: 78,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,023.28 : 140,791.50 = 56,700.54 : x
  2. Step 2: Convert to fraction form
    102,023.28/140,791.50 = 56,700.54/x
  3. Step 3: Cross multiply
    102,023.28x = 140,791.50 × 56,700.54
  4. Step 4: Simplify right side
    102,023.28x = 7,982,954,077.41
  5. Step 5: Solve for x
    x = 7,982,954,077.41/102,023.28
  6. Step 6: Final answer
    x = 78,246.40

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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.