Home / 137,208.20-205,812.30-48,561.80

Finding the Fourth Proportional to 137,208.20, 205,812.30 and 48,561.80

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Solution

The fourth proportional to 137,208.20, 205,812.30 and 48,561.80 is: 72,842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,208.20 : 205,812.30 = 48,561.80 : x
  2. Step 2: Convert to fraction form
    137,208.20/205,812.30 = 48,561.80/x
  3. Step 3: Cross multiply
    137,208.20x = 205,812.30 × 48,561.80
  4. Step 4: Simplify right side
    137,208.20x = 9,994,615,750.14
  5. Step 5: Solve for x
    x = 9,994,615,750.14/137,208.20
  6. Step 6: Final answer
    x = 72,842.70

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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.