Home / 122,818.31-184,216.87-74,774.47

Finding the Fourth Proportional to 122,818.31, 184,216.87 and 74,774.47

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Solution

The fourth proportional to 122,818.31, 184,216.87 and 74,774.47 is: 112,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,818.31 : 184,216.87 = 74,774.47 : x
  2. Step 2: Convert to fraction form
    122,818.31/184,216.87 = 74,774.47/x
  3. Step 3: Cross multiply
    122,818.31x = 184,216.87 × 74,774.47
  4. Step 4: Simplify right side
    122,818.31x = 13,774,718,819.31
  5. Step 5: Solve for x
    x = 13,774,718,819.31/122,818.31
  6. Step 6: Final answer
    x = 112,155.26

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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.