Home / 187,014.60-280,619.10-81,844.20

Finding the Fourth Proportional to 187,014.60, 280,619.10 and 81,844.20

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Solution

The fourth proportional to 187,014.60, 280,619.10 and 81,844.20 is: 122,808.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,014.60 : 280,619.10 = 81,844.20 : x
  2. Step 2: Convert to fraction form
    187,014.60/280,619.10 = 81,844.20/x
  3. Step 3: Cross multiply
    187,014.60x = 280,619.10 × 81,844.20
  4. Step 4: Simplify right side
    187,014.60x = 22,967,045,744.22
  5. Step 5: Solve for x
    x = 22,967,045,744.22/187,014.60
  6. Step 6: Final answer
    x = 122,808.84

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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.