Home / 228,293.43-315,171.62-137,672.35

Finding the Fourth Proportional to 228,293.43, 315,171.62 and 137,672.35

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Solution

The fourth proportional to 228,293.43, 315,171.62 and 137,672.35 is: 190,064.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,293.43 : 315,171.62 = 137,672.35 : x
  2. Step 2: Convert to fraction form
    228,293.43/315,171.62 = 137,672.35/x
  3. Step 3: Cross multiply
    228,293.43x = 315,171.62 × 137,672.35
  4. Step 4: Simplify right side
    228,293.43x = 43,390,417,578.71
  5. Step 5: Solve for x
    x = 43,390,417,578.71/228,293.43
  6. Step 6: Final answer
    x = 190,064.24

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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.