Home / 122,651.72-169,265.40-74,897.36

Finding the Fourth Proportional to 122,651.72, 169,265.40 and 74,897.36

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Solution

The fourth proportional to 122,651.72, 169,265.40 and 74,897.36 is: 103,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,651.72 : 169,265.40 = 74,897.36 : x
  2. Step 2: Convert to fraction form
    122,651.72/169,265.40 = 74,897.36/x
  3. Step 3: Cross multiply
    122,651.72x = 169,265.40 × 74,897.36
  4. Step 4: Simplify right side
    122,651.72x = 12,677,531,599.34
  5. Step 5: Solve for x
    x = 12,677,531,599.34/122,651.72
  6. Step 6: Final answer
    x = 103,362.04

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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.