Home / 107,106.42-147,799.62-58,707.78

Finding the Fourth Proportional to 107,106.42, 147,799.62 and 58,707.78

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Solution

The fourth proportional to 107,106.42, 147,799.62 and 58,707.78 is: 81,012.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,106.42 : 147,799.62 = 58,707.78 : x
  2. Step 2: Convert to fraction form
    107,106.42/147,799.62 = 58,707.78/x
  3. Step 3: Cross multiply
    107,106.42x = 147,799.62 × 58,707.78
  4. Step 4: Simplify right side
    107,106.42x = 8,676,987,575.04
  5. Step 5: Solve for x
    x = 8,676,987,575.04/107,106.42
  6. Step 6: Final answer
    x = 81,012.77

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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.