Home / 156,679.40-235,172.70-77,882.60

Finding the Fourth Proportional to 156,679.40, 235,172.70 and 77,882.60

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Solution

The fourth proportional to 156,679.40, 235,172.70 and 77,882.60 is: 116,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,679.40 : 235,172.70 = 77,882.60 : x
  2. Step 2: Convert to fraction form
    156,679.40/235,172.70 = 77,882.60/x
  3. Step 3: Cross multiply
    156,679.40x = 235,172.70 × 77,882.60
  4. Step 4: Simplify right side
    156,679.40x = 18,315,861,325.02
  5. Step 5: Solve for x
    x = 18,315,861,325.02/156,679.40
  6. Step 6: Final answer
    x = 116,900.25

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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.