Home / 112,853.63-155,736.87-61,869.17

Finding the Fourth Proportional to 112,853.63, 155,736.87 and 61,869.17

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Solution

The fourth proportional to 112,853.63, 155,736.87 and 61,869.17 is: 85,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,853.63 : 155,736.87 = 61,869.17 : x
  2. Step 2: Convert to fraction form
    112,853.63/155,736.87 = 61,869.17/x
  3. Step 3: Cross multiply
    112,853.63x = 155,736.87 × 61,869.17
  4. Step 4: Simplify right side
    112,853.63x = 9,635,310,885.30
  5. Step 5: Solve for x
    x = 9,635,310,885.30/112,853.63
  6. Step 6: Final answer
    x = 85,378.83

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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.