Home / 130,103.68-195,221.12-51,274.40

Finding the Fourth Proportional to 130,103.68, 195,221.12 and 51,274.40

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Solution

The fourth proportional to 130,103.68, 195,221.12 and 51,274.40 is: 76,937.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,103.68 : 195,221.12 = 51,274.40 : x
  2. Step 2: Convert to fraction form
    130,103.68/195,221.12 = 51,274.40/x
  3. Step 3: Cross multiply
    130,103.68x = 195,221.12 × 51,274.40
  4. Step 4: Simplify right side
    130,103.68x = 10,009,845,795.33
  5. Step 5: Solve for x
    x = 10,009,845,795.33/130,103.68
  6. Step 6: Final answer
    x = 76,937.45

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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.