Home / 161,781.96-223,259.28-90,160.36

Finding the Fourth Proportional to 161,781.96, 223,259.28 and 90,160.36

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Solution

The fourth proportional to 161,781.96, 223,259.28 and 90,160.36 is: 124,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,781.96 : 223,259.28 = 90,160.36 : x
  2. Step 2: Convert to fraction form
    161,781.96/223,259.28 = 90,160.36/x
  3. Step 3: Cross multiply
    161,781.96x = 223,259.28 × 90,160.36
  4. Step 4: Simplify right side
    161,781.96x = 20,129,137,058.14
  5. Step 5: Solve for x
    x = 20,129,137,058.14/161,781.96
  6. Step 6: Final answer
    x = 124,421.39

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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.