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Finding the Fourth Proportional to 103,857.55, 143,323.49 and 56,110.88

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Solution

The fourth proportional to 103,857.55, 143,323.49 and 56,110.88 is: 77,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.55 : 143,323.49 = 56,110.88 : x
  2. Step 2: Convert to fraction form
    103,857.55/143,323.49 = 56,110.88/x
  3. Step 3: Cross multiply
    103,857.55x = 143,323.49 × 56,110.88
  4. Step 4: Simplify right side
    103,857.55x = 8,042,007,148.57
  5. Step 5: Solve for x
    x = 8,042,007,148.57/103,857.55
  6. Step 6: Final answer
    x = 77,433.05

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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.