Home / 150,771.76-208,050.70-90,331.18

Finding the Fourth Proportional to 150,771.76, 208,050.70 and 90,331.18

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Solution

The fourth proportional to 150,771.76, 208,050.70 and 90,331.18 is: 124,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,771.76 : 208,050.70 = 90,331.18 : x
  2. Step 2: Convert to fraction form
    150,771.76/208,050.70 = 90,331.18/x
  3. Step 3: Cross multiply
    150,771.76x = 208,050.70 × 90,331.18
  4. Step 4: Simplify right side
    150,771.76x = 18,793,464,484.87
  5. Step 5: Solve for x
    x = 18,793,464,484.87/150,771.76
  6. Step 6: Final answer
    x = 124,648.44

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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.