Home / 230,711.50-346,121.06-78,909.75

Finding the Fourth Proportional to 230,711.50, 346,121.06 and 78,909.75

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Solution

The fourth proportional to 230,711.50, 346,121.06 and 78,909.75 is: 118,383.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,711.50 : 346,121.06 = 78,909.75 : x
  2. Step 2: Convert to fraction form
    230,711.50/346,121.06 = 78,909.75/x
  3. Step 3: Cross multiply
    230,711.50x = 346,121.06 × 78,909.75
  4. Step 4: Simplify right side
    230,711.50x = 27,312,326,511.61
  5. Step 5: Solve for x
    x = 27,312,326,511.61/230,711.50
  6. Step 6: Final answer
    x = 118,383.03

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1.5x scale

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.