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Finding the Fourth Proportional to 148,359.58, 204,700.77 and 87,919.81

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Solution

The fourth proportional to 148,359.58, 204,700.77 and 87,919.81 is: 121,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,359.58 : 204,700.77 = 87,919.81 : x
  2. Step 2: Convert to fraction form
    148,359.58/204,700.77 = 87,919.81/x
  3. Step 3: Cross multiply
    148,359.58x = 204,700.77 × 87,919.81
  4. Step 4: Simplify right side
    148,359.58x = 17,997,252,293.50
  5. Step 5: Solve for x
    x = 17,997,252,293.50/148,359.58
  6. Step 6: Final answer
    x = 121,308.33

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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.