Home / 207,495.02-311,320.96-81,225.50

Finding the Fourth Proportional to 207,495.02, 311,320.96 and 81,225.50

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Solution

The fourth proportional to 207,495.02, 311,320.96 and 81,225.50 is: 121,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,495.02 : 311,320.96 = 81,225.50 : x
  2. Step 2: Convert to fraction form
    207,495.02/311,320.96 = 81,225.50/x
  3. Step 3: Cross multiply
    207,495.02x = 311,320.96 × 81,225.50
  4. Step 4: Simplify right side
    207,495.02x = 25,287,200,636.48
  5. Step 5: Solve for x
    x = 25,287,200,636.48/207,495.02
  6. Step 6: Final answer
    x = 121,868.95

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1.5x scale

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.