Home / 143,558.32-198,095.78-83,148.60

Finding the Fourth Proportional to 143,558.32, 198,095.78 and 83,148.60

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Solution

The fourth proportional to 143,558.32, 198,095.78 and 83,148.60 is: 114,736.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,558.32 : 198,095.78 = 83,148.60 : x
  2. Step 2: Convert to fraction form
    143,558.32/198,095.78 = 83,148.60/x
  3. Step 3: Cross multiply
    143,558.32x = 198,095.78 × 83,148.60
  4. Step 4: Simplify right side
    143,558.32x = 16,471,386,772.91
  5. Step 5: Solve for x
    x = 16,471,386,772.91/143,558.32
  6. Step 6: Final answer
    x = 114,736.55

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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.