Home / 103,854.05-143,318.66-56,107.38

Finding the Fourth Proportional to 103,854.05, 143,318.66 and 56,107.38

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Solution

The fourth proportional to 103,854.05, 143,318.66 and 56,107.38 is: 77,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,854.05 : 143,318.66 = 56,107.38 : x
  2. Step 2: Convert to fraction form
    103,854.05/143,318.66 = 56,107.38/x
  3. Step 3: Cross multiply
    103,854.05x = 143,318.66 × 56,107.38
  4. Step 4: Simplify right side
    103,854.05x = 8,041,234,517.71
  5. Step 5: Solve for x
    x = 8,041,234,517.71/103,854.05
  6. Step 6: Final answer
    x = 77,428.22

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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.