Home / 161,985.42-223,539.24-90,365.38

Finding the Fourth Proportional to 161,985.42, 223,539.24 and 90,365.38

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Solution

The fourth proportional to 161,985.42, 223,539.24 and 90,365.38 is: 124,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,985.42 : 223,539.24 = 90,365.38 : x
  2. Step 2: Convert to fraction form
    161,985.42/223,539.24 = 90,365.38/x
  3. Step 3: Cross multiply
    161,985.42x = 223,539.24 × 90,365.38
  4. Step 4: Simplify right side
    161,985.42x = 20,200,208,367.51
  5. Step 5: Solve for x
    x = 20,200,208,367.51/161,985.42
  6. Step 6: Final answer
    x = 124,703.87

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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.