Home / 150,172.11-207,223.38-89,730.72

Finding the Fourth Proportional to 150,172.11, 207,223.38 and 89,730.72

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Solution

The fourth proportional to 150,172.11, 207,223.38 and 89,730.72 is: 123,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,172.11 : 207,223.38 = 89,730.72 : x
  2. Step 2: Convert to fraction form
    150,172.11/207,223.38 = 89,730.72/x
  3. Step 3: Cross multiply
    150,172.11x = 207,223.38 × 89,730.72
  4. Step 4: Simplify right side
    150,172.11x = 18,594,303,088.23
  5. Step 5: Solve for x
    x = 18,594,303,088.23/150,172.11
  6. Step 6: Final answer
    x = 123,819.95

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1.5x scale

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.