Home / 130,004.60-195,006.90-121,256.60

Finding the Fourth Proportional to 130,004.60, 195,006.90 and 121,256.60

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Solution

The fourth proportional to 130,004.60, 195,006.90 and 121,256.60 is: 181,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,004.60 : 195,006.90 = 121,256.60 : x
  2. Step 2: Convert to fraction form
    130,004.60/195,006.90 = 121,256.60/x
  3. Step 3: Cross multiply
    130,004.60x = 195,006.90 × 121,256.60
  4. Step 4: Simplify right side
    130,004.60x = 23,645,873,670.54
  5. Step 5: Solve for x
    x = 23,645,873,670.54/130,004.60
  6. Step 6: Final answer
    x = 181,884.90

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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.