Home / 133,030.20-183,584.04-72,601.36

Finding the Fourth Proportional to 133,030.20, 183,584.04 and 72,601.36

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Solution

The fourth proportional to 133,030.20, 183,584.04 and 72,601.36 is: 100,191.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030.20 : 183,584.04 = 72,601.36 : x
  2. Step 2: Convert to fraction form
    133,030.20/183,584.04 = 72,601.36/x
  3. Step 3: Cross multiply
    133,030.20x = 183,584.04 × 72,601.36
  4. Step 4: Simplify right side
    133,030.20x = 13,328,450,978.29
  5. Step 5: Solve for x
    x = 13,328,450,978.29/133,030.20
  6. Step 6: Final answer
    x = 100,191.17

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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.