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Finding the Fourth Proportional to 134,737.00, 185,990.20 and 81,011.64

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Solution

The fourth proportional to 134,737.00, 185,990.20 and 81,011.64 is: 111,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,737.00 : 185,990.20 = 81,011.64 : x
  2. Step 2: Convert to fraction form
    134,737.00/185,990.20 = 81,011.64/x
  3. Step 3: Cross multiply
    134,737.00x = 185,990.20 × 81,011.64
  4. Step 4: Simplify right side
    134,737.00x = 15,067,371,030.36
  5. Step 5: Solve for x
    x = 15,067,371,030.36/134,737.00
  6. Step 6: Final answer
    x = 111,828.01

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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.