Home / 113,428.87-170,248.55-57,308.39

Finding the Fourth Proportional to 113,428.87, 170,248.55 and 57,308.39

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Solution

The fourth proportional to 113,428.87, 170,248.55 and 57,308.39 is: 86,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,428.87 : 170,248.55 = 57,308.39 : x
  2. Step 2: Convert to fraction form
    113,428.87/170,248.55 = 57,308.39/x
  3. Step 3: Cross multiply
    113,428.87x = 170,248.55 × 57,308.39
  4. Step 4: Simplify right side
    113,428.87x = 9,756,670,439.41
  5. Step 5: Solve for x
    x = 9,756,670,439.41/113,428.87
  6. Step 6: Final answer
    x = 86,015.76

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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.