Home / 206,720.55-310,080.83-66,493.35

Finding the Fourth Proportional to 206,720.55, 310,080.83 and 66,493.35

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Solution

The fourth proportional to 206,720.55, 310,080.83 and 66,493.35 is: 99,740.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,720.55 : 310,080.83 = 66,493.35 : x
  2. Step 2: Convert to fraction form
    206,720.55/310,080.83 = 66,493.35/x
  3. Step 3: Cross multiply
    206,720.55x = 310,080.83 × 66,493.35
  4. Step 4: Simplify right side
    206,720.55x = 20,618,312,825.01
  5. Step 5: Solve for x
    x = 20,618,312,825.01/206,720.55
  6. Step 6: Final answer
    x = 99,740.03

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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.