Home / 122,804.28-169,060.50-117,161.82

Finding the Fourth Proportional to 122,804.28, 169,060.50 and 117,161.82

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Solution

The fourth proportional to 122,804.28, 169,060.50 and 117,161.82 is: 161,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,804.28 : 169,060.50 = 117,161.82 : x
  2. Step 2: Convert to fraction form
    122,804.28/169,060.50 = 117,161.82/x
  3. Step 3: Cross multiply
    122,804.28x = 169,060.50 × 117,161.82
  4. Step 4: Simplify right side
    122,804.28x = 19,807,435,870.11
  5. Step 5: Solve for x
    x = 19,807,435,870.11/122,804.28
  6. Step 6: Final answer
    x = 161,292.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.