Home / 101,945.07-140,520.54-69,229.20

Finding the Fourth Proportional to 101,945.07, 140,520.54 and 69,229.20

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Solution

The fourth proportional to 101,945.07, 140,520.54 and 69,229.20 is: 95,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,945.07 : 140,520.54 = 69,229.20 : x
  2. Step 2: Convert to fraction form
    101,945.07/140,520.54 = 69,229.20/x
  3. Step 3: Cross multiply
    101,945.07x = 140,520.54 × 69,229.20
  4. Step 4: Simplify right side
    101,945.07x = 9,728,124,567.77
  5. Step 5: Solve for x
    x = 9,728,124,567.77/101,945.07
  6. Step 6: Final answer
    x = 95,425.16

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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.