Home / 140,569.01-193,783.47-100,212.71

Finding the Fourth Proportional to 140,569.01, 193,783.47 and 100,212.71

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Solution

The fourth proportional to 140,569.01, 193,783.47 and 100,212.71 is: 138,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,569.01 : 193,783.47 = 100,212.71 : x
  2. Step 2: Convert to fraction form
    140,569.01/193,783.47 = 100,212.71/x
  3. Step 3: Cross multiply
    140,569.01x = 193,783.47 × 100,212.71
  4. Step 4: Simplify right side
    140,569.01x = 19,419,566,960.99
  5. Step 5: Solve for x
    x = 19,419,566,960.99/140,569.01
  6. Step 6: Final answer
    x = 138,149.70

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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.