Home / 207,748.40-311,579.40-89,423.60

Finding the Fourth Proportional to 207,748.40, 311,579.40 and 89,423.60

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Solution

The fourth proportional to 207,748.40, 311,579.40 and 89,423.60 is: 134,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,748.40 : 311,579.40 = 89,423.60 : x
  2. Step 2: Convert to fraction form
    207,748.40/311,579.40 = 89,423.60/x
  3. Step 3: Cross multiply
    207,748.40x = 311,579.40 × 89,423.60
  4. Step 4: Simplify right side
    207,748.40x = 27,862,551,633.84
  5. Step 5: Solve for x
    x = 27,862,551,633.84/207,748.40
  6. Step 6: Final answer
    x = 134,116.80

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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.