Home / 150,106.68-207,172.62-86,432.76

Finding the Fourth Proportional to 150,106.68, 207,172.62 and 86,432.76

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Solution

The fourth proportional to 150,106.68, 207,172.62 and 86,432.76 is: 119,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,106.68 : 207,172.62 = 86,432.76 : x
  2. Step 2: Convert to fraction form
    150,106.68/207,172.62 = 86,432.76/x
  3. Step 3: Cross multiply
    150,106.68x = 207,172.62 × 86,432.76
  4. Step 4: Simplify right side
    150,106.68x = 17,906,501,343.03
  5. Step 5: Solve for x
    x = 17,906,501,343.03/150,106.68
  6. Step 6: Final answer
    x = 119,291.84

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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.