Home / 205,849.40-308,543.70-87,500.60

Finding the Fourth Proportional to 205,849.40, 308,543.70 and 87,500.60

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Solution

The fourth proportional to 205,849.40, 308,543.70 and 87,500.60 is: 131,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,849.40 : 308,543.70 = 87,500.60 : x
  2. Step 2: Convert to fraction form
    205,849.40/308,543.70 = 87,500.60/x
  3. Step 3: Cross multiply
    205,849.40x = 308,543.70 × 87,500.60
  4. Step 4: Simplify right side
    205,849.40x = 26,997,758,876.22
  5. Step 5: Solve for x
    x = 26,997,758,876.22/205,849.40
  6. Step 6: Final answer
    x = 131,152.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.