Home / 165,720.20-248,612.70-65,863.40

Finding the Fourth Proportional to 165,720.20, 248,612.70 and 65,863.40

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Solution

The fourth proportional to 165,720.20, 248,612.70 and 65,863.40 is: 98,807.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,720.20 : 248,612.70 = 65,863.40 : x
  2. Step 2: Convert to fraction form
    165,720.20/248,612.70 = 65,863.40/x
  3. Step 3: Cross multiply
    165,720.20x = 248,612.70 × 65,863.40
  4. Step 4: Simplify right side
    165,720.20x = 16,374,477,705.18
  5. Step 5: Solve for x
    x = 16,374,477,705.18/165,720.20
  6. Step 6: Final answer
    x = 98,807.98

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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.