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Finding the Fourth Proportional to 109,780.69, 151,497.30 and 59,479.69

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Solution

The fourth proportional to 109,780.69, 151,497.30 and 59,479.69 is: 82,081.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,780.69 : 151,497.30 = 59,479.69 : x
  2. Step 2: Convert to fraction form
    109,780.69/151,497.30 = 59,479.69/x
  3. Step 3: Cross multiply
    109,780.69x = 151,497.30 × 59,479.69
  4. Step 4: Simplify right side
    109,780.69x = 9,011,012,439.84
  5. Step 5: Solve for x
    x = 9,011,012,439.84/109,780.69
  6. Step 6: Final answer
    x = 82,081.94

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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.