Home / 212,014.76-318,091.16-99,706.14

Finding the Fourth Proportional to 212,014.76, 318,091.16 and 99,706.14

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Solution

The fourth proportional to 212,014.76, 318,091.16 and 99,706.14 is: 149,591.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,014.76 : 318,091.16 = 99,706.14 : x
  2. Step 2: Convert to fraction form
    212,014.76/318,091.16 = 99,706.14/x
  3. Step 3: Cross multiply
    212,014.76x = 318,091.16 × 99,706.14
  4. Step 4: Simplify right side
    212,014.76x = 31,715,641,233.19
  5. Step 5: Solve for x
    x = 31,715,641,233.19/212,014.76
  6. Step 6: Final answer
    x = 149,591.67

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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.