Home / 138,095.18-207,141.38-48,137.71

Finding the Fourth Proportional to 138,095.18, 207,141.38 and 48,137.71

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Solution

The fourth proportional to 138,095.18, 207,141.38 and 48,137.71 is: 72,206.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,095.18 : 207,141.38 = 48,137.71 : x
  2. Step 2: Convert to fraction form
    138,095.18/207,141.38 = 48,137.71/x
  3. Step 3: Cross multiply
    138,095.18x = 207,141.38 × 48,137.71
  4. Step 4: Simplify right side
    138,095.18x = 9,971,311,760.58
  5. Step 5: Solve for x
    x = 9,971,311,760.58/138,095.18
  6. Step 6: Final answer
    x = 72,206.08

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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.