Home / 138,099.48-207,153.68-38,260.64

Finding the Fourth Proportional to 138,099.48, 207,153.68 and 38,260.64

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Solution

The fourth proportional to 138,099.48, 207,153.68 and 38,260.64 is: 57,392.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,099.48 : 207,153.68 = 38,260.64 : x
  2. Step 2: Convert to fraction form
    138,099.48/207,153.68 = 38,260.64/x
  3. Step 3: Cross multiply
    138,099.48x = 207,153.68 × 38,260.64
  4. Step 4: Simplify right side
    138,099.48x = 7,925,831,148.08
  5. Step 5: Solve for x
    x = 7,925,831,148.08/138,099.48
  6. Step 6: Final answer
    x = 57,392.19

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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.