Home / 130,344.20-195,905.10-128,011.40

Finding the Fourth Proportional to 130,344.20, 195,905.10 and 128,011.40

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Solution

The fourth proportional to 130,344.20, 195,905.10 and 128,011.40 is: 192,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,344.20 : 195,905.10 = 128,011.40 : x
  2. Step 2: Convert to fraction form
    130,344.20/195,905.10 = 128,011.40/x
  3. Step 3: Cross multiply
    130,344.20x = 195,905.10 × 128,011.40
  4. Step 4: Simplify right side
    130,344.20x = 25,078,086,118.14
  5. Step 5: Solve for x
    x = 25,078,086,118.14/130,344.20
  6. Step 6: Final answer
    x = 192,398.94

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1.5x scale

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.