Home / 130,287.60-195,496.20-51,404.40

Finding the Fourth Proportional to 130,287.60, 195,496.20 and 51,404.40

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Solution

The fourth proportional to 130,287.60, 195,496.20 and 51,404.40 is: 77,132.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,287.60 : 195,496.20 = 51,404.40 : x
  2. Step 2: Convert to fraction form
    130,287.60/195,496.20 = 51,404.40/x
  3. Step 3: Cross multiply
    130,287.60x = 195,496.20 × 51,404.40
  4. Step 4: Simplify right side
    130,287.60x = 10,049,364,863.28
  5. Step 5: Solve for x
    x = 10,049,364,863.28/130,287.60
  6. Step 6: Final answer
    x = 77,132.17

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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.