Home / 170,938.45-256,452.01-90,910.62

Finding the Fourth Proportional to 170,938.45, 256,452.01 and 90,910.62

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Solution

The fourth proportional to 170,938.45, 256,452.01 and 90,910.62 is: 136,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,938.45 : 256,452.01 = 90,910.62 : x
  2. Step 2: Convert to fraction form
    170,938.45/256,452.01 = 90,910.62/x
  3. Step 3: Cross multiply
    170,938.45x = 256,452.01 × 90,910.62
  4. Step 4: Simplify right side
    170,938.45x = 23,314,210,174.36
  5. Step 5: Solve for x
    x = 23,314,210,174.36/170,938.45
  6. Step 6: Final answer
    x = 136,389.50

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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.