Home / 137,021.20-205,482.68-58,140.88

Finding the Fourth Proportional to 137,021.20, 205,482.68 and 58,140.88

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Solution

The fourth proportional to 137,021.20, 205,482.68 and 58,140.88 is: 87,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,021.20 : 205,482.68 = 58,140.88 : x
  2. Step 2: Convert to fraction form
    137,021.20/205,482.68 = 58,140.88/x
  3. Step 3: Cross multiply
    137,021.20x = 205,482.68 × 58,140.88
  4. Step 4: Simplify right side
    137,021.20x = 11,946,943,839.96
  5. Step 5: Solve for x
    x = 11,946,943,839.96/137,021.20
  6. Step 6: Final answer
    x = 87,190.48

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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.