Home / 156,289.32-234,444.51-77,382.36

Finding the Fourth Proportional to 156,289.32, 234,444.51 and 77,382.36

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Solution

The fourth proportional to 156,289.32, 234,444.51 and 77,382.36 is: 116,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,289.32 : 234,444.51 = 77,382.36 : x
  2. Step 2: Convert to fraction form
    156,289.32/234,444.51 = 77,382.36/x
  3. Step 3: Cross multiply
    156,289.32x = 234,444.51 × 77,382.36
  4. Step 4: Simplify right side
    156,289.32x = 18,141,869,472.84
  5. Step 5: Solve for x
    x = 18,141,869,472.84/156,289.32
  6. Step 6: Final answer
    x = 116,078.75

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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.