Home / 120,825.60-181,238.40-37,719.60

Finding the Fourth Proportional to 120,825.60, 181,238.40 and 37,719.60

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Solution

The fourth proportional to 120,825.60, 181,238.40 and 37,719.60 is: 56,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,825.60 : 181,238.40 = 37,719.60 : x
  2. Step 2: Convert to fraction form
    120,825.60/181,238.40 = 37,719.60/x
  3. Step 3: Cross multiply
    120,825.60x = 181,238.40 × 37,719.60
  4. Step 4: Simplify right side
    120,825.60x = 6,836,239,952.64
  5. Step 5: Solve for x
    x = 6,836,239,952.64/120,825.60
  6. Step 6: Final answer
    x = 56,579.40

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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.