Home / 156,716.40-235,228.20-77,919.60

Finding the Fourth Proportional to 156,716.40, 235,228.20 and 77,919.60

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Solution

The fourth proportional to 156,716.40, 235,228.20 and 77,919.60 is: 116,955.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,716.40 : 235,228.20 = 77,919.60 : x
  2. Step 2: Convert to fraction form
    156,716.40/235,228.20 = 77,919.60/x
  3. Step 3: Cross multiply
    156,716.40x = 235,228.20 × 77,919.60
  4. Step 4: Simplify right side
    156,716.40x = 18,328,887,252.72
  5. Step 5: Solve for x
    x = 18,328,887,252.72/156,716.40
  6. Step 6: Final answer
    x = 116,955.77

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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.