Home / 107,412.15-160,872.80-51,291.57

Finding the Fourth Proportional to 107,412.15, 160,872.80 and 51,291.57

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Solution

The fourth proportional to 107,412.15, 160,872.80 and 51,291.57 is: 76,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,412.15 : 160,872.80 = 51,291.57 : x
  2. Step 2: Convert to fraction form
    107,412.15/160,872.80 = 51,291.57/x
  3. Step 3: Cross multiply
    107,412.15x = 160,872.80 × 51,291.57
  4. Step 4: Simplify right side
    107,412.15x = 8,251,418,225.84
  5. Step 5: Solve for x
    x = 8,251,418,225.84/107,412.15
  6. Step 6: Final answer
    x = 76,820.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.