Home / 156,619.30-234,928.95-77,887.30

Finding the Fourth Proportional to 156,619.30, 234,928.95 and 77,887.30

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Solution

The fourth proportional to 156,619.30, 234,928.95 and 77,887.30 is: 116,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,619.30 : 234,928.95 = 77,887.30 : x
  2. Step 2: Convert to fraction form
    156,619.30/234,928.95 = 77,887.30/x
  3. Step 3: Cross multiply
    156,619.30x = 234,928.95 × 77,887.30
  4. Step 4: Simplify right side
    156,619.30x = 18,297,981,607.34
  5. Step 5: Solve for x
    x = 18,297,981,607.34/156,619.30
  6. Step 6: Final answer
    x = 116,830.95

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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.