Home / 138,924.96-208,416.20-55,825.44

Finding the Fourth Proportional to 138,924.96, 208,416.20 and 55,825.44

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Solution

The fourth proportional to 138,924.96, 208,416.20 and 55,825.44 is: 83,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,924.96 : 208,416.20 = 55,825.44 : x
  2. Step 2: Convert to fraction form
    138,924.96/208,416.20 = 55,825.44/x
  3. Step 3: Cross multiply
    138,924.96x = 208,416.20 × 55,825.44
  4. Step 4: Simplify right side
    138,924.96x = 11,634,926,068.13
  5. Step 5: Solve for x
    x = 11,634,926,068.13/138,924.96
  6. Step 6: Final answer
    x = 83,749.72

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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.