Home / 231,225.92-319,114.74-135,730.58

Finding the Fourth Proportional to 231,225.92, 319,114.74 and 135,730.58

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Solution

The fourth proportional to 231,225.92, 319,114.74 and 135,730.58 is: 187,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,225.92 : 319,114.74 = 135,730.58 : x
  2. Step 2: Convert to fraction form
    231,225.92/319,114.74 = 135,730.58/x
  3. Step 3: Cross multiply
    231,225.92x = 319,114.74 × 135,730.58
  4. Step 4: Simplify right side
    231,225.92x = 43,313,628,746.75
  5. Step 5: Solve for x
    x = 43,313,628,746.75/231,225.92
  6. Step 6: Final answer
    x = 187,321.68

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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.