Home / 212,061.96-318,091.32-54,290.16

Finding the Fourth Proportional to 212,061.96, 318,091.32 and 54,290.16

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Solution

The fourth proportional to 212,061.96, 318,091.32 and 54,290.16 is: 81,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,061.96 : 318,091.32 = 54,290.16 : x
  2. Step 2: Convert to fraction form
    212,061.96/318,091.32 = 54,290.16/x
  3. Step 3: Cross multiply
    212,061.96x = 318,091.32 × 54,290.16
  4. Step 4: Simplify right side
    212,061.96x = 17,269,228,657.41
  5. Step 5: Solve for x
    x = 17,269,228,657.41/212,061.96
  6. Step 6: Final answer
    x = 81,434.83

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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.