Home / 130,971.28-196,493.16-52,140.84

Finding the Fourth Proportional to 130,971.28, 196,493.16 and 52,140.84

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Solution

The fourth proportional to 130,971.28, 196,493.16 and 52,140.84 is: 78,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,971.28 : 196,493.16 = 52,140.84 : x
  2. Step 2: Convert to fraction form
    130,971.28/196,493.16 = 52,140.84/x
  3. Step 3: Cross multiply
    130,971.28x = 196,493.16 × 52,140.84
  4. Step 4: Simplify right side
    130,971.28x = 10,245,318,416.65
  5. Step 5: Solve for x
    x = 10,245,318,416.65/130,971.28
  6. Step 6: Final answer
    x = 78,225.69

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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.