Home / 130,418.63-195,495.60-74,142.47

Finding the Fourth Proportional to 130,418.63, 195,495.60 and 74,142.47

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Solution

The fourth proportional to 130,418.63, 195,495.60 and 74,142.47 is: 111,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,418.63 : 195,495.60 = 74,142.47 : x
  2. Step 2: Convert to fraction form
    130,418.63/195,495.60 = 74,142.47/x
  3. Step 3: Cross multiply
    130,418.63x = 195,495.60 × 74,142.47
  4. Step 4: Simplify right side
    130,418.63x = 14,494,526,658.13
  5. Step 5: Solve for x
    x = 14,494,526,658.13/130,418.63
  6. Step 6: Final answer
    x = 111,138.47

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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.