Home / 140,050-193,430.24-101,979.76

Finding the Fourth Proportional to 140,050, 193,430.24 and 101,979.76

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Solution

The fourth proportional to 140,050, 193,430.24 and 101,979.76 is: 140,849.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,050 : 193,430.24 = 101,979.76 : x
  2. Step 2: Convert to fraction form
    140,050/193,430.24 = 101,979.76/x
  3. Step 3: Cross multiply
    140,050x = 193,430.24 × 101,979.76
  4. Step 4: Simplify right side
    140,050x = 19,725,969,451.94
  5. Step 5: Solve for x
    x = 19,725,969,451.94/140,050
  6. Step 6: Final answer
    x = 140,849.48

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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.