Home / 207,493.02-311,317.95-81,223.50

Finding the Fourth Proportional to 207,493.02, 311,317.95 and 81,223.50

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Solution

The fourth proportional to 207,493.02, 311,317.95 and 81,223.50 is: 121,865.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,493.02 : 311,317.95 = 81,223.50 : x
  2. Step 2: Convert to fraction form
    207,493.02/311,317.95 = 81,223.50/x
  3. Step 3: Cross multiply
    207,493.02x = 311,317.95 × 81,223.50
  4. Step 4: Simplify right side
    207,493.02x = 25,286,333,511.83
  5. Step 5: Solve for x
    x = 25,286,333,511.83/207,493.02
  6. Step 6: Final answer
    x = 121,865.95

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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.