Home / 163,300.48-225,367.68-91,685.20

Finding the Fourth Proportional to 163,300.48, 225,367.68 and 91,685.20

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Solution

The fourth proportional to 163,300.48, 225,367.68 and 91,685.20 is: 126,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,300.48 : 225,367.68 = 91,685.20 : x
  2. Step 2: Convert to fraction form
    163,300.48/225,367.68 = 91,685.20/x
  3. Step 3: Cross multiply
    163,300.48x = 225,367.68 × 91,685.20
  4. Step 4: Simplify right side
    163,300.48x = 20,662,880,814.34
  5. Step 5: Solve for x
    x = 20,662,880,814.34/163,300.48
  6. Step 6: Final answer
    x = 126,532.88

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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.