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Finding the Fourth Proportional to 159,701.58, 239,158.71 and 100,390.14

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Solution

The fourth proportional to 159,701.58, 239,158.71 and 100,390.14 is: 150,337.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,701.58 : 239,158.71 = 100,390.14 : x
  2. Step 2: Convert to fraction form
    159,701.58/239,158.71 = 100,390.14/x
  3. Step 3: Cross multiply
    159,701.58x = 239,158.71 × 100,390.14
  4. Step 4: Simplify right side
    159,701.58x = 24,009,176,379.12
  5. Step 5: Solve for x
    x = 24,009,176,379.12/159,701.58
  6. Step 6: Final answer
    x = 150,337.75

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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.