Home / 132,919.40-199,389.89-39,424.88

Finding the Fourth Proportional to 132,919.40, 199,389.89 and 39,424.88

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Solution

The fourth proportional to 132,919.40, 199,389.89 and 39,424.88 is: 59,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,919.40 : 199,389.89 = 39,424.88 : x
  2. Step 2: Convert to fraction form
    132,919.40/199,389.89 = 39,424.88/x
  3. Step 3: Cross multiply
    132,919.40x = 199,389.89 × 39,424.88
  4. Step 4: Simplify right side
    132,919.40x = 7,860,922,486.46
  5. Step 5: Solve for x
    x = 7,860,922,486.46/132,919.40
  6. Step 6: Final answer
    x = 59,140.52

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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.