Home / 151,319.43-208,813.41-87,677.73

Finding the Fourth Proportional to 151,319.43, 208,813.41 and 87,677.73

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Solution

The fourth proportional to 151,319.43, 208,813.41 and 87,677.73 is: 120,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,319.43 : 208,813.41 = 87,677.73 : x
  2. Step 2: Convert to fraction form
    151,319.43/208,813.41 = 87,677.73/x
  3. Step 3: Cross multiply
    151,319.43x = 208,813.41 × 87,677.73
  4. Step 4: Simplify right side
    151,319.43x = 18,308,285,782.36
  5. Step 5: Solve for x
    x = 18,308,285,782.36/151,319.43
  6. Step 6: Final answer
    x = 120,990.98

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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.