Home / 90,493.35-135,005.24-85,594.47

Finding the Fourth Proportional to 90,493.35, 135,005.24 and 85,594.47

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Solution

The fourth proportional to 90,493.35, 135,005.24 and 85,594.47 is: 127,696.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,493.35 : 135,005.24 = 85,594.47 : x
  2. Step 2: Convert to fraction form
    90,493.35/135,005.24 = 85,594.47/x
  3. Step 3: Cross multiply
    90,493.35x = 135,005.24 × 85,594.47
  4. Step 4: Simplify right side
    90,493.35x = 11,555,701,965.02
  5. Step 5: Solve for x
    x = 11,555,701,965.02/90,493.35
  6. Step 6: Final answer
    x = 127,696.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.