Home / 122,131.32-183,071.43-69,429.48

Finding the Fourth Proportional to 122,131.32, 183,071.43 and 69,429.48

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Solution

The fourth proportional to 122,131.32, 183,071.43 and 69,429.48 is: 104,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,131.32 : 183,071.43 = 69,429.48 : x
  2. Step 2: Convert to fraction form
    122,131.32/183,071.43 = 69,429.48/x
  3. Step 3: Cross multiply
    122,131.32x = 183,071.43 × 69,429.48
  4. Step 4: Simplify right side
    122,131.32x = 12,710,554,187.76
  5. Step 5: Solve for x
    x = 12,710,554,187.76/122,131.32
  6. Step 6: Final answer
    x = 104,072.85

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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.