Home / 130,988.42-196,318.33-56,020.55

Finding the Fourth Proportional to 130,988.42, 196,318.33 and 56,020.55

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Solution

The fourth proportional to 130,988.42, 196,318.33 and 56,020.55 is: 83,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,988.42 : 196,318.33 = 56,020.55 : x
  2. Step 2: Convert to fraction form
    130,988.42/196,318.33 = 56,020.55/x
  3. Step 3: Cross multiply
    130,988.42x = 196,318.33 × 56,020.55
  4. Step 4: Simplify right side
    130,988.42x = 10,997,861,172.43
  5. Step 5: Solve for x
    x = 10,997,861,172.43/130,988.42
  6. Step 6: Final answer
    x = 83,960.56

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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.