Home / 139,934.10-209,901.15-139,059.30

Finding the Fourth Proportional to 139,934.10, 209,901.15 and 139,059.30

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Solution

The fourth proportional to 139,934.10, 209,901.15 and 139,059.30 is: 208,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,934.10 : 209,901.15 = 139,059.30 : x
  2. Step 2: Convert to fraction form
    139,934.10/209,901.15 = 139,059.30/x
  3. Step 3: Cross multiply
    139,934.10x = 209,901.15 × 139,059.30
  4. Step 4: Simplify right side
    139,934.10x = 29,188,706,988.20
  5. Step 5: Solve for x
    x = 29,188,706,988.20/139,934.10
  6. Step 6: Final answer
    x = 208,588.95

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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.