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Finding the Fourth Proportional to 158,667.66, 238,063.80 and 69,858.86

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Solution

The fourth proportional to 158,667.66, 238,063.80 and 69,858.86 is: 104,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,667.66 : 238,063.80 = 69,858.86 : x
  2. Step 2: Convert to fraction form
    158,667.66/238,063.80 = 69,858.86/x
  3. Step 3: Cross multiply
    158,667.66x = 238,063.80 × 69,858.86
  4. Step 4: Simplify right side
    158,667.66x = 16,630,865,675.27
  5. Step 5: Solve for x
    x = 16,630,865,675.27/158,667.66
  6. Step 6: Final answer
    x = 104,815.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.