Home / 156,979.78-235,411.35-51,770.50

Finding the Fourth Proportional to 156,979.78, 235,411.35 and 51,770.50

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Solution

The fourth proportional to 156,979.78, 235,411.35 and 51,770.50 is: 77,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.78 : 235,411.35 = 51,770.50 : x
  2. Step 2: Convert to fraction form
    156,979.78/235,411.35 = 51,770.50/x
  3. Step 3: Cross multiply
    156,979.78x = 235,411.35 × 51,770.50
  4. Step 4: Simplify right side
    156,979.78x = 12,187,363,295.18
  5. Step 5: Solve for x
    x = 12,187,363,295.18/156,979.78
  6. Step 6: Final answer
    x = 77,636.52

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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.