Home / 140,720.82-194,228.91-86,973.47

Finding the Fourth Proportional to 140,720.82, 194,228.91 and 86,973.47

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Solution

The fourth proportional to 140,720.82, 194,228.91 and 86,973.47 is: 120,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,720.82 : 194,228.91 = 86,973.47 : x
  2. Step 2: Convert to fraction form
    140,720.82/194,228.91 = 86,973.47/x
  3. Step 3: Cross multiply
    140,720.82x = 194,228.91 × 86,973.47
  4. Step 4: Simplify right side
    140,720.82x = 16,892,762,277.02
  5. Step 5: Solve for x
    x = 16,892,762,277.02/140,720.82
  6. Step 6: Final answer
    x = 120,044.51

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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.