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Finding the Fourth Proportional to 107,177.93, 147,894.89 and 61,870.51

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Solution

The fourth proportional to 107,177.93, 147,894.89 and 61,870.51 is: 85,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,177.93 : 147,894.89 = 61,870.51 : x
  2. Step 2: Convert to fraction form
    107,177.93/147,894.89 = 61,870.51/x
  3. Step 3: Cross multiply
    107,177.93x = 147,894.89 × 61,870.51
  4. Step 4: Simplify right side
    107,177.93x = 9,150,332,270.69
  5. Step 5: Solve for x
    x = 9,150,332,270.69/107,177.93
  6. Step 6: Final answer
    x = 85,375.15

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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.