Home / 211,155.06-316,753.20-61,396.50

Finding the Fourth Proportional to 211,155.06, 316,753.20 and 61,396.50

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Solution

The fourth proportional to 211,155.06, 316,753.20 and 61,396.50 is: 92,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,155.06 : 316,753.20 = 61,396.50 : x
  2. Step 2: Convert to fraction form
    211,155.06/316,753.20 = 61,396.50/x
  3. Step 3: Cross multiply
    211,155.06x = 316,753.20 × 61,396.50
  4. Step 4: Simplify right side
    211,155.06x = 19,447,537,843.80
  5. Step 5: Solve for x
    x = 19,447,537,843.80/211,155.06
  6. Step 6: Final answer
    x = 92,100.74

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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.