Home / 150,138.23-207,188.96-82,154.45

Finding the Fourth Proportional to 150,138.23, 207,188.96 and 82,154.45

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Solution

The fourth proportional to 150,138.23, 207,188.96 and 82,154.45 is: 113,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,138.23 : 207,188.96 = 82,154.45 : x
  2. Step 2: Convert to fraction form
    150,138.23/207,188.96 = 82,154.45/x
  3. Step 3: Cross multiply
    150,138.23x = 207,188.96 × 82,154.45
  4. Step 4: Simplify right side
    150,138.23x = 17,021,495,162.07
  5. Step 5: Solve for x
    x = 17,021,495,162.07/150,138.23
  6. Step 6: Final answer
    x = 113,372.16

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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.