Home / 207,778.85-286,722.45-120,557.22

Finding the Fourth Proportional to 207,778.85, 286,722.45 and 120,557.22

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Solution

The fourth proportional to 207,778.85, 286,722.45 and 120,557.22 is: 166,361.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,778.85 : 286,722.45 = 120,557.22 : x
  2. Step 2: Convert to fraction form
    207,778.85/286,722.45 = 120,557.22/x
  3. Step 3: Cross multiply
    207,778.85x = 286,722.45 × 120,557.22
  4. Step 4: Simplify right side
    207,778.85x = 34,566,461,473.42
  5. Step 5: Solve for x
    x = 34,566,461,473.42/207,778.85
  6. Step 6: Final answer
    x = 166,361.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.