Home / 133,108.79-183,693.92-72,683.27

Finding the Fourth Proportional to 133,108.79, 183,693.92 and 72,683.27

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Solution

The fourth proportional to 133,108.79, 183,693.92 and 72,683.27 is: 100,304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,108.79 : 183,693.92 = 72,683.27 : x
  2. Step 2: Convert to fraction form
    133,108.79/183,693.92 = 72,683.27/x
  3. Step 3: Cross multiply
    133,108.79x = 183,693.92 × 72,683.27
  4. Step 4: Simplify right side
    133,108.79x = 13,351,474,784.72
  5. Step 5: Solve for x
    x = 13,351,474,784.72/133,108.79
  6. Step 6: Final answer
    x = 100,304.98

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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.