Home / 149,031.39-223,058.40-81,459.93

Finding the Fourth Proportional to 149,031.39, 223,058.40 and 81,459.93

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Solution

The fourth proportional to 149,031.39, 223,058.40 and 81,459.93 is: 121,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,031.39 : 223,058.40 = 81,459.93 : x
  2. Step 2: Convert to fraction form
    149,031.39/223,058.40 = 81,459.93/x
  3. Step 3: Cross multiply
    149,031.39x = 223,058.40 × 81,459.93
  4. Step 4: Simplify right side
    149,031.39x = 18,170,321,649.91
  5. Step 5: Solve for x
    x = 18,170,321,649.91/149,031.39
  6. Step 6: Final answer
    x = 121,922.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.