Home / 212,500.89-318,674.81-70,319.93

Finding the Fourth Proportional to 212,500.89, 318,674.81 and 70,319.93

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Solution

The fourth proportional to 212,500.89, 318,674.81 and 70,319.93 is: 105,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,500.89 : 318,674.81 = 70,319.93 : x
  2. Step 2: Convert to fraction form
    212,500.89/318,674.81 = 70,319.93/x
  3. Step 3: Cross multiply
    212,500.89x = 318,674.81 × 70,319.93
  4. Step 4: Simplify right side
    212,500.89x = 22,409,188,914.39
  5. Step 5: Solve for x
    x = 22,409,188,914.39/212,500.89
  6. Step 6: Final answer
    x = 105,454.56

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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.