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Finding the Fourth Proportional to 131,794.75, 181,909.56 and 75,238.93

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Solution

The fourth proportional to 131,794.75, 181,909.56 and 75,238.93 is: 103,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,794.75 : 181,909.56 = 75,238.93 : x
  2. Step 2: Convert to fraction form
    131,794.75/181,909.56 = 75,238.93/x
  3. Step 3: Cross multiply
    131,794.75x = 181,909.56 × 75,238.93
  4. Step 4: Simplify right side
    131,794.75x = 13,686,680,651.17
  5. Step 5: Solve for x
    x = 13,686,680,651.17/131,794.75
  6. Step 6: Final answer
    x = 103,848.45

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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.