Home / 161,769.91-223,239.45-90,148.36

Finding the Fourth Proportional to 161,769.91, 223,239.45 and 90,148.36

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Solution

The fourth proportional to 161,769.91, 223,239.45 and 90,148.36 is: 124,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,769.91 : 223,239.45 = 90,148.36 : x
  2. Step 2: Convert to fraction form
    161,769.91/223,239.45 = 90,148.36/x
  3. Step 3: Cross multiply
    161,769.91x = 223,239.45 × 90,148.36
  4. Step 4: Simplify right side
    161,769.91x = 20,124,670,304.80
  5. Step 5: Solve for x
    x = 20,124,670,304.80/161,769.91
  6. Step 6: Final answer
    x = 124,403.05

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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.