Home / 103,854.12-143,318.73-56,107.38

Finding the Fourth Proportional to 103,854.12, 143,318.73 and 56,107.38

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Solution

The fourth proportional to 103,854.12, 143,318.73 and 56,107.38 is: 77,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,854.12 : 143,318.73 = 56,107.38 : x
  2. Step 2: Convert to fraction form
    103,854.12/143,318.73 = 56,107.38/x
  3. Step 3: Cross multiply
    103,854.12x = 143,318.73 × 56,107.38
  4. Step 4: Simplify right side
    103,854.12x = 8,041,238,445.23
  5. Step 5: Solve for x
    x = 8,041,238,445.23/103,854.12
  6. Step 6: Final answer
    x = 77,428.21

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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.