Home / 161,806.96-223,294.64-90,191.52

Finding the Fourth Proportional to 161,806.96, 223,294.64 and 90,191.52

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Solution

The fourth proportional to 161,806.96, 223,294.64 and 90,191.52 is: 124,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,806.96 : 223,294.64 = 90,191.52 : x
  2. Step 2: Convert to fraction form
    161,806.96/223,294.64 = 90,191.52/x
  3. Step 3: Cross multiply
    161,806.96x = 223,294.64 × 90,191.52
  4. Step 4: Simplify right side
    161,806.96x = 20,139,282,989.45
  5. Step 5: Solve for x
    x = 20,139,282,989.45/161,806.96
  6. Step 6: Final answer
    x = 124,464.87

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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.