Home / 101,983.57-140,623.87-69,723.45

Finding the Fourth Proportional to 101,983.57, 140,623.87 and 69,723.45

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Solution

The fourth proportional to 101,983.57, 140,623.87 and 69,723.45 is: 96,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,983.57 : 140,623.87 = 69,723.45 : x
  2. Step 2: Convert to fraction form
    101,983.57/140,623.87 = 69,723.45/x
  3. Step 3: Cross multiply
    101,983.57x = 140,623.87 × 69,723.45
  4. Step 4: Simplify right side
    101,983.57x = 9,804,781,521.27
  5. Step 5: Solve for x
    x = 9,804,781,521.27/101,983.57
  6. Step 6: Final answer
    x = 96,140.79

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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.