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Finding the Fourth Proportional to 155,866.86, 215,096.22 and 84,246.86

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Solution

The fourth proportional to 155,866.86, 215,096.22 and 84,246.86 is: 116,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,866.86 : 215,096.22 = 84,246.86 : x
  2. Step 2: Convert to fraction form
    155,866.86/215,096.22 = 84,246.86/x
  3. Step 3: Cross multiply
    155,866.86x = 215,096.22 × 84,246.86
  4. Step 4: Simplify right side
    155,866.86x = 18,121,181,132.87
  5. Step 5: Solve for x
    x = 18,121,181,132.87/155,866.86
  6. Step 6: Final answer
    x = 116,260.64

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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.