Home / 161,782.96-223,260.66-90,161.36

Finding the Fourth Proportional to 161,782.96, 223,260.66 and 90,161.36

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Solution

The fourth proportional to 161,782.96, 223,260.66 and 90,161.36 is: 124,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,782.96 : 223,260.66 = 90,161.36 : x
  2. Step 2: Convert to fraction form
    161,782.96/223,260.66 = 90,161.36/x
  3. Step 3: Cross multiply
    161,782.96x = 223,260.66 × 90,161.36
  4. Step 4: Simplify right side
    161,782.96x = 20,129,484,740.10
  5. Step 5: Solve for x
    x = 20,129,484,740.10/161,782.96
  6. Step 6: Final answer
    x = 124,422.77

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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.