Home / 150,851.72-208,160.34-90,406.28

Finding the Fourth Proportional to 150,851.72, 208,160.34 and 90,406.28

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Solution

The fourth proportional to 150,851.72, 208,160.34 and 90,406.28 is: 124,751.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,851.72 : 208,160.34 = 90,406.28 : x
  2. Step 2: Convert to fraction form
    150,851.72/208,160.34 = 90,406.28/x
  3. Step 3: Cross multiply
    150,851.72x = 208,160.34 × 90,406.28
  4. Step 4: Simplify right side
    150,851.72x = 18,819,001,982.94
  5. Step 5: Solve for x
    x = 18,819,001,982.94/150,851.72
  6. Step 6: Final answer
    x = 124,751.66

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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.