Home / 212,364.64-318,263.91-79,110.73

Finding the Fourth Proportional to 212,364.64, 318,263.91 and 79,110.73

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Solution

The fourth proportional to 212,364.64, 318,263.91 and 79,110.73 is: 118,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,364.64 : 318,263.91 = 79,110.73 : x
  2. Step 2: Convert to fraction form
    212,364.64/318,263.91 = 79,110.73/x
  3. Step 3: Cross multiply
    212,364.64x = 318,263.91 × 79,110.73
  4. Step 4: Simplify right side
    212,364.64x = 25,178,090,252.75
  5. Step 5: Solve for x
    x = 25,178,090,252.75/212,364.64
  6. Step 6: Final answer
    x = 118,560.65

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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.