Home / 163,289.70-225,364.38-99,664.47

Finding the Fourth Proportional to 163,289.70, 225,364.38 and 99,664.47

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Solution

The fourth proportional to 163,289.70, 225,364.38 and 99,664.47 is: 137,551.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,289.70 : 225,364.38 = 99,664.47 : x
  2. Step 2: Convert to fraction form
    163,289.70/225,364.38 = 99,664.47/x
  3. Step 3: Cross multiply
    163,289.70x = 225,364.38 × 99,664.47
  4. Step 4: Simplify right side
    163,289.70x = 22,460,821,489.58
  5. Step 5: Solve for x
    x = 22,460,821,489.58/163,289.70
  6. Step 6: Final answer
    x = 137,551.98

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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.