Home / 148,426.64-204,821.16-81,345.68

Finding the Fourth Proportional to 148,426.64, 204,821.16 and 81,345.68

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Solution

The fourth proportional to 148,426.64, 204,821.16 and 81,345.68 is: 112,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,426.64 : 204,821.16 = 81,345.68 : x
  2. Step 2: Convert to fraction form
    148,426.64/204,821.16 = 81,345.68/x
  3. Step 3: Cross multiply
    148,426.64x = 204,821.16 × 81,345.68
  4. Step 4: Simplify right side
    148,426.64x = 16,661,316,538.59
  5. Step 5: Solve for x
    x = 16,661,316,538.59/148,426.64
  6. Step 6: Final answer
    x = 112,252.87

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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.