Home / 186,631.80-279,781.93-72,753.36

Finding the Fourth Proportional to 186,631.80, 279,781.93 and 72,753.36

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Solution

The fourth proportional to 186,631.80, 279,781.93 and 72,753.36 is: 109,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,631.80 : 279,781.93 = 72,753.36 : x
  2. Step 2: Convert to fraction form
    186,631.80/279,781.93 = 72,753.36/x
  3. Step 3: Cross multiply
    186,631.80x = 279,781.93 × 72,753.36
  4. Step 4: Simplify right side
    186,631.80x = 20,355,075,474.78
  5. Step 5: Solve for x
    x = 20,355,075,474.78/186,631.80
  6. Step 6: Final answer
    x = 109,065.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.