Home / 151,416.18-208,961.37-87,773.94

Finding the Fourth Proportional to 151,416.18, 208,961.37 and 87,773.94

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Solution

The fourth proportional to 151,416.18, 208,961.37 and 87,773.94 is: 121,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,416.18 : 208,961.37 = 87,773.94 : x
  2. Step 2: Convert to fraction form
    151,416.18/208,961.37 = 87,773.94/x
  3. Step 3: Cross multiply
    151,416.18x = 208,961.37 × 87,773.94
  4. Step 4: Simplify right side
    151,416.18x = 18,341,362,752.70
  5. Step 5: Solve for x
    x = 18,341,362,752.70/151,416.18
  6. Step 6: Final answer
    x = 121,132.12

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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.