Home / 150,776.82-208,056.60-87,135.12

Finding the Fourth Proportional to 150,776.82, 208,056.60 and 87,135.12

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Solution

The fourth proportional to 150,776.82, 208,056.60 and 87,135.12 is: 120,237.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,776.82 : 208,056.60 = 87,135.12 : x
  2. Step 2: Convert to fraction form
    150,776.82/208,056.60 = 87,135.12/x
  3. Step 3: Cross multiply
    150,776.82x = 208,056.60 × 87,135.12
  4. Step 4: Simplify right side
    150,776.82x = 18,129,036,807.79
  5. Step 5: Solve for x
    x = 18,129,036,807.79/150,776.82
  6. Step 6: Final answer
    x = 120,237.56

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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.