Home / 140,778.90-211,170.51-47,285.46

Finding the Fourth Proportional to 140,778.90, 211,170.51 and 47,285.46

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Solution

The fourth proportional to 140,778.90, 211,170.51 and 47,285.46 is: 70,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,778.90 : 211,170.51 = 47,285.46 : x
  2. Step 2: Convert to fraction form
    140,778.90/211,170.51 = 47,285.46/x
  3. Step 3: Cross multiply
    140,778.90x = 211,170.51 × 47,285.46
  4. Step 4: Simplify right side
    140,778.90x = 9,985,294,703.78
  5. Step 5: Solve for x
    x = 9,985,294,703.78/140,778.90
  6. Step 6: Final answer
    x = 70,928.92

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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.