Home / 112,414.43-155,130.08-61,426.05

Finding the Fourth Proportional to 112,414.43, 155,130.08 and 61,426.05

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Solution

The fourth proportional to 112,414.43, 155,130.08 and 61,426.05 is: 84,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,414.43 : 155,130.08 = 61,426.05 : x
  2. Step 2: Convert to fraction form
    112,414.43/155,130.08 = 61,426.05/x
  3. Step 3: Cross multiply
    112,414.43x = 155,130.08 × 61,426.05
  4. Step 4: Simplify right side
    112,414.43x = 9,529,027,743.45
  5. Step 5: Solve for x
    x = 9,529,027,743.45/112,414.43
  6. Step 6: Final answer
    x = 84,766.95

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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.