Home / 122,985.32-169,732.50-75,270.44

Finding the Fourth Proportional to 122,985.32, 169,732.50 and 75,270.44

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Solution

The fourth proportional to 122,985.32, 169,732.50 and 75,270.44 is: 103,881.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,985.32 : 169,732.50 = 75,270.44 : x
  2. Step 2: Convert to fraction form
    122,985.32/169,732.50 = 75,270.44/x
  3. Step 3: Cross multiply
    122,985.32x = 169,732.50 × 75,270.44
  4. Step 4: Simplify right side
    122,985.32x = 12,775,839,957.30
  5. Step 5: Solve for x
    x = 12,775,839,957.30/122,985.32
  6. Step 6: Final answer
    x = 103,881.02

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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.