Home / 112,375.77-168,588.28-42,255.09

Finding the Fourth Proportional to 112,375.77, 168,588.28 and 42,255.09

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Solution

The fourth proportional to 112,375.77, 168,588.28 and 42,255.09 is: 63,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,375.77 : 168,588.28 = 42,255.09 : x
  2. Step 2: Convert to fraction form
    112,375.77/168,588.28 = 42,255.09/x
  3. Step 3: Cross multiply
    112,375.77x = 168,588.28 × 42,255.09
  4. Step 4: Simplify right side
    112,375.77x = 7,123,712,101.40
  5. Step 5: Solve for x
    x = 7,123,712,101.40/112,375.77
  6. Step 6: Final answer
    x = 63,391.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.