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Finding the Fourth Proportional to 103,955.44, 143,458.26 and 56,208.64

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Solution

The fourth proportional to 103,955.44, 143,458.26 and 56,208.64 is: 77,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,955.44 : 143,458.26 = 56,208.64 : x
  2. Step 2: Convert to fraction form
    103,955.44/143,458.26 = 56,208.64/x
  3. Step 3: Cross multiply
    103,955.44x = 143,458.26 × 56,208.64
  4. Step 4: Simplify right side
    103,955.44x = 8,063,593,691.37
  5. Step 5: Solve for x
    x = 8,063,593,691.37/103,955.44
  6. Step 6: Final answer
    x = 77,567.79

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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.