Home / 152,965.20-211,125.80-85,005.52

Finding the Fourth Proportional to 152,965.20, 211,125.80 and 85,005.52

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Solution

The fourth proportional to 152,965.20, 211,125.80 and 85,005.52 is: 117,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,965.20 : 211,125.80 = 85,005.52 : x
  2. Step 2: Convert to fraction form
    152,965.20/211,125.80 = 85,005.52/x
  3. Step 3: Cross multiply
    152,965.20x = 211,125.80 × 85,005.52
  4. Step 4: Simplify right side
    152,965.20x = 17,946,858,414.42
  5. Step 5: Solve for x
    x = 17,946,858,414.42/152,965.20
  6. Step 6: Final answer
    x = 117,326.41

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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.