Home / 211,143.06-316,735.20-61,384.50

Finding the Fourth Proportional to 211,143.06, 316,735.20 and 61,384.50

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Solution

The fourth proportional to 211,143.06, 316,735.20 and 61,384.50 is: 92,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,143.06 : 316,735.20 = 61,384.50 : x
  2. Step 2: Convert to fraction form
    211,143.06/316,735.20 = 61,384.50/x
  3. Step 3: Cross multiply
    211,143.06x = 316,735.20 × 61,384.50
  4. Step 4: Simplify right side
    211,143.06x = 19,442,631,884.40
  5. Step 5: Solve for x
    x = 19,442,631,884.40/211,143.06
  6. Step 6: Final answer
    x = 92,082.74

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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.