Home / 187,539.20-281,336.16-54,420.20

Finding the Fourth Proportional to 187,539.20, 281,336.16 and 54,420.20

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Solution

The fourth proportional to 187,539.20, 281,336.16 and 54,420.20 is: 81,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,539.20 : 281,336.16 = 54,420.20 : x
  2. Step 2: Convert to fraction form
    187,539.20/281,336.16 = 54,420.20/x
  3. Step 3: Cross multiply
    187,539.20x = 281,336.16 × 54,420.20
  4. Step 4: Simplify right side
    187,539.20x = 15,310,370,094.43
  5. Step 5: Solve for x
    x = 15,310,370,094.43/187,539.20
  6. Step 6: Final answer
    x = 81,638.24

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1.5x scale

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.