Home / 218,506.12-327,486.93-78,110.44

Finding the Fourth Proportional to 218,506.12, 327,486.93 and 78,110.44

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Solution

The fourth proportional to 218,506.12, 327,486.93 and 78,110.44 is: 117,068.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,506.12 : 327,486.93 = 78,110.44 : x
  2. Step 2: Convert to fraction form
    218,506.12/327,486.93 = 78,110.44/x
  3. Step 3: Cross multiply
    218,506.12x = 327,486.93 × 78,110.44
  4. Step 4: Simplify right side
    218,506.12x = 25,580,148,196.55
  5. Step 5: Solve for x
    x = 25,580,148,196.55/218,506.12
  6. Step 6: Final answer
    x = 117,068.34

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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.