Home / 156,228.50-234,382.71-45,420.50

Finding the Fourth Proportional to 156,228.50, 234,382.71 and 45,420.50

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Solution

The fourth proportional to 156,228.50, 234,382.71 and 45,420.50 is: 68,142.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,228.50 : 234,382.71 = 45,420.50 : x
  2. Step 2: Convert to fraction form
    156,228.50/234,382.71 = 45,420.50/x
  3. Step 3: Cross multiply
    156,228.50x = 234,382.71 × 45,420.50
  4. Step 4: Simplify right side
    156,228.50x = 10,645,779,879.56
  5. Step 5: Solve for x
    x = 10,645,779,879.56/156,228.50
  6. Step 6: Final answer
    x = 68,142.37

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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.