Home / 130,988.34-196,648.56-109,069.74

Finding the Fourth Proportional to 130,988.34, 196,648.56 and 109,069.74

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Solution

The fourth proportional to 130,988.34, 196,648.56 and 109,069.74 is: 163,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,988.34 : 196,648.56 = 109,069.74 : x
  2. Step 2: Convert to fraction form
    130,988.34/196,648.56 = 109,069.74/x
  3. Step 3: Cross multiply
    130,988.34x = 196,648.56 × 109,069.74
  4. Step 4: Simplify right side
    130,988.34x = 21,448,407,310.57
  5. Step 5: Solve for x
    x = 21,448,407,310.57/130,988.34
  6. Step 6: Final answer
    x = 163,742.87

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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.