Home / 161,709.40-223,165.86-90,089.38

Finding the Fourth Proportional to 161,709.40, 223,165.86 and 90,089.38

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Solution

The fourth proportional to 161,709.40, 223,165.86 and 90,089.38 is: 124,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,709.40 : 223,165.86 = 90,089.38 : x
  2. Step 2: Convert to fraction form
    161,709.40/223,165.86 = 90,089.38/x
  3. Step 3: Cross multiply
    161,709.40x = 223,165.86 × 90,089.38
  4. Step 4: Simplify right side
    161,709.40x = 20,104,873,964.57
  5. Step 5: Solve for x
    x = 20,104,873,964.57/161,709.40
  6. Step 6: Final answer
    x = 124,327.18

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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.