Home / 103,853.88-143,318.43-56,107.17

Finding the Fourth Proportional to 103,853.88, 143,318.43 and 56,107.17

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Solution

The fourth proportional to 103,853.88, 143,318.43 and 56,107.17 is: 77,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,853.88 : 143,318.43 = 56,107.17 : x
  2. Step 2: Convert to fraction form
    103,853.88/143,318.43 = 56,107.17/x
  3. Step 3: Cross multiply
    103,853.88x = 143,318.43 × 56,107.17
  4. Step 4: Simplify right side
    103,853.88x = 8,041,191,516.14
  5. Step 5: Solve for x
    x = 8,041,191,516.14/103,853.88
  6. Step 6: Final answer
    x = 77,427.94

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1.5x scale

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.