Home / 155,904.89-215,263.78-95,557.86

Finding the Fourth Proportional to 155,904.89, 215,263.78 and 95,557.86

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Solution

The fourth proportional to 155,904.89, 215,263.78 and 95,557.86 is: 131,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,904.89 : 215,263.78 = 95,557.86 : x
  2. Step 2: Convert to fraction form
    155,904.89/215,263.78 = 95,557.86/x
  3. Step 3: Cross multiply
    155,904.89x = 215,263.78 × 95,557.86
  4. Step 4: Simplify right side
    155,904.89x = 20,570,145,913.42
  5. Step 5: Solve for x
    x = 20,570,145,913.42/155,904.89
  6. Step 6: Final answer
    x = 131,940.36

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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.