Home / 122,613.78-183,822.93-112,772.82

Finding the Fourth Proportional to 122,613.78, 183,822.93 and 112,772.82

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Solution

The fourth proportional to 122,613.78, 183,822.93 and 112,772.82 is: 169,069.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,613.78 : 183,822.93 = 112,772.82 : x
  2. Step 2: Convert to fraction form
    122,613.78/183,822.93 = 112,772.82/x
  3. Step 3: Cross multiply
    122,613.78x = 183,822.93 × 112,772.82
  4. Step 4: Simplify right side
    122,613.78x = 20,730,230,196.76
  5. Step 5: Solve for x
    x = 20,730,230,196.76/122,613.78
  6. Step 6: Final answer
    x = 169,069.33

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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.