Home / 149,871.74-206,582.78-101,458.40

Finding the Fourth Proportional to 149,871.74, 206,582.78 and 101,458.40

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Solution

The fourth proportional to 149,871.74, 206,582.78 and 101,458.40 is: 139,849.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,871.74 : 206,582.78 = 101,458.40 : x
  2. Step 2: Convert to fraction form
    149,871.74/206,582.78 = 101,458.40/x
  3. Step 3: Cross multiply
    149,871.74x = 206,582.78 × 101,458.40
  4. Step 4: Simplify right side
    149,871.74x = 20,959,558,326.35
  5. Step 5: Solve for x
    x = 20,959,558,326.35/149,871.74
  6. Step 6: Final answer
    x = 139,849.97

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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.