Home / 212,454.12-318,484.35-72,114.33

Finding the Fourth Proportional to 212,454.12, 318,484.35 and 72,114.33

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Solution

The fourth proportional to 212,454.12, 318,484.35 and 72,114.33 is: 108,104.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,454.12 : 318,484.35 = 72,114.33 : x
  2. Step 2: Convert to fraction form
    212,454.12/318,484.35 = 72,114.33/x
  3. Step 3: Cross multiply
    212,454.12x = 318,484.35 × 72,114.33
  4. Step 4: Simplify right side
    212,454.12x = 22,967,285,515.74
  5. Step 5: Solve for x
    x = 22,967,285,515.74/212,454.12
  6. Step 6: Final answer
    x = 108,104.68

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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.