Home / 131,080.06-180,897.87-99,193.60

Finding the Fourth Proportional to 131,080.06, 180,897.87 and 99,193.60

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Solution

The fourth proportional to 131,080.06, 180,897.87 and 99,193.60 is: 136,892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,080.06 : 180,897.87 = 99,193.60 : x
  2. Step 2: Convert to fraction form
    131,080.06/180,897.87 = 99,193.60/x
  3. Step 3: Cross multiply
    131,080.06x = 180,897.87 × 99,193.60
  4. Step 4: Simplify right side
    131,080.06x = 17,943,910,957.63
  5. Step 5: Solve for x
    x = 17,943,910,957.63/131,080.06
  6. Step 6: Final answer
    x = 136,892.76

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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.