Home / 231,962.79-320,131.09-130,005.46

Finding the Fourth Proportional to 231,962.79, 320,131.09 and 130,005.46

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Solution

The fourth proportional to 231,962.79, 320,131.09 and 130,005.46 is: 179,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,962.79 : 320,131.09 = 130,005.46 : x
  2. Step 2: Convert to fraction form
    231,962.79/320,131.09 = 130,005.46/x
  3. Step 3: Cross multiply
    231,962.79x = 320,131.09 × 130,005.46
  4. Step 4: Simplify right side
    231,962.79x = 41,618,787,646.40
  5. Step 5: Solve for x
    x = 41,618,787,646.40/231,962.79
  6. Step 6: Final answer
    x = 179,420.10

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1.5x scale

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.