Home / 122,139.19-183,295.32-55,587.88

Finding the Fourth Proportional to 122,139.19, 183,295.32 and 55,587.88

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Solution

The fourth proportional to 122,139.19, 183,295.32 and 55,587.88 is: 83,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,139.19 : 183,295.32 = 55,587.88 : x
  2. Step 2: Convert to fraction form
    122,139.19/183,295.32 = 55,587.88/x
  3. Step 3: Cross multiply
    122,139.19x = 183,295.32 × 55,587.88
  4. Step 4: Simplify right side
    122,139.19x = 10,188,998,252.72
  5. Step 5: Solve for x
    x = 10,188,998,252.72/122,139.19
  6. Step 6: Final answer
    x = 83,421.20

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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.