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Finding the Fourth Proportional to 134,773.88, 186,060.85 and 81,070.88

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Solution

The fourth proportional to 134,773.88, 186,060.85 and 81,070.88 is: 111,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,773.88 : 186,060.85 = 81,070.88 : x
  2. Step 2: Convert to fraction form
    134,773.88/186,060.85 = 81,070.88/x
  3. Step 3: Cross multiply
    134,773.88x = 186,060.85 × 81,070.88
  4. Step 4: Simplify right side
    134,773.88x = 15,084,115,710.07
  5. Step 5: Solve for x
    x = 15,084,115,710.07/134,773.88
  6. Step 6: Final answer
    x = 111,921.66

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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.