Home / 138,350.08-207,350.28-74,148.67

Finding the Fourth Proportional to 138,350.08, 207,350.28 and 74,148.67

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Solution

The fourth proportional to 138,350.08, 207,350.28 and 74,148.67 is: 111,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,350.08 : 207,350.28 = 74,148.67 : x
  2. Step 2: Convert to fraction form
    138,350.08/207,350.28 = 74,148.67/x
  3. Step 3: Cross multiply
    138,350.08x = 207,350.28 × 74,148.67
  4. Step 4: Simplify right side
    138,350.08x = 15,374,746,578.97
  5. Step 5: Solve for x
    x = 15,374,746,578.97/138,350.08
  6. Step 6: Final answer
    x = 111,129.29

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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.