Home / 135,298.56-186,712.32-74,873.60

Finding the Fourth Proportional to 135,298.56, 186,712.32 and 74,873.60

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Solution

The fourth proportional to 135,298.56, 186,712.32 and 74,873.60 is: 103,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,298.56 : 186,712.32 = 74,873.60 : x
  2. Step 2: Convert to fraction form
    135,298.56/186,712.32 = 74,873.60/x
  3. Step 3: Cross multiply
    135,298.56x = 186,712.32 × 74,873.60
  4. Step 4: Simplify right side
    135,298.56x = 13,979,823,562.75
  5. Step 5: Solve for x
    x = 13,979,823,562.75/135,298.56
  6. Step 6: Final answer
    x = 103,325.74

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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.