Home / 231,963.79-320,132.47-130,006.46

Finding the Fourth Proportional to 231,963.79, 320,132.47 and 130,006.46

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Solution

The fourth proportional to 231,963.79, 320,132.47 and 130,006.46 is: 179,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,963.79 : 320,132.47 = 130,006.46 : x
  2. Step 2: Convert to fraction form
    231,963.79/320,132.47 = 130,006.46/x
  3. Step 3: Cross multiply
    231,963.79x = 320,132.47 × 130,006.46
  4. Step 4: Simplify right side
    231,963.79x = 41,619,289,155.76
  5. Step 5: Solve for x
    x = 41,619,289,155.76/231,963.79
  6. Step 6: Final answer
    x = 179,421.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.