Home / 161,710.40-223,167.24-90,090.38

Finding the Fourth Proportional to 161,710.40, 223,167.24 and 90,090.38

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Solution

The fourth proportional to 161,710.40, 223,167.24 and 90,090.38 is: 124,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,710.40 : 223,167.24 = 90,090.38 : x
  2. Step 2: Convert to fraction form
    161,710.40/223,167.24 = 90,090.38/x
  3. Step 3: Cross multiply
    161,710.40x = 223,167.24 × 90,090.38
  4. Step 4: Simplify right side
    161,710.40x = 20,105,221,455.15
  5. Step 5: Solve for x
    x = 20,105,221,455.15/161,710.40
  6. Step 6: Final answer
    x = 124,328.56

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1.5x scale

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.