Home / 130,530.40-195,795.60-123,791.20

Finding the Fourth Proportional to 130,530.40, 195,795.60 and 123,791.20

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Solution

The fourth proportional to 130,530.40, 195,795.60 and 123,791.20 is: 185,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,530.40 : 195,795.60 = 123,791.20 : x
  2. Step 2: Convert to fraction form
    130,530.40/195,795.60 = 123,791.20/x
  3. Step 3: Cross multiply
    130,530.40x = 195,795.60 × 123,791.20
  4. Step 4: Simplify right side
    130,530.40x = 24,237,772,278.72
  5. Step 5: Solve for x
    x = 24,237,772,278.72/130,530.40
  6. Step 6: Final answer
    x = 185,686.80

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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.