Home / 140,958.55-211,428.10-66,095.31

Finding the Fourth Proportional to 140,958.55, 211,428.10 and 66,095.31

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Solution

The fourth proportional to 140,958.55, 211,428.10 and 66,095.31 is: 99,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,958.55 : 211,428.10 = 66,095.31 : x
  2. Step 2: Convert to fraction form
    140,958.55/211,428.10 = 66,095.31/x
  3. Step 3: Cross multiply
    140,958.55x = 211,428.10 × 66,095.31
  4. Step 4: Simplify right side
    140,958.55x = 13,974,405,812.21
  5. Step 5: Solve for x
    x = 13,974,405,812.21/140,958.55
  6. Step 6: Final answer
    x = 99,138.40

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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.