Home / 133,108.74-183,693.84-72,683.21

Finding the Fourth Proportional to 133,108.74, 183,693.84 and 72,683.21

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Solution

The fourth proportional to 133,108.74, 183,693.84 and 72,683.21 is: 100,304.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,108.74 : 183,693.84 = 72,683.21 : x
  2. Step 2: Convert to fraction form
    133,108.74/183,693.84 = 72,683.21/x
  3. Step 3: Cross multiply
    133,108.74x = 183,693.84 × 72,683.21
  4. Step 4: Simplify right side
    133,108.74x = 13,351,457,948.43
  5. Step 5: Solve for x
    x = 13,351,457,948.43/133,108.74
  6. Step 6: Final answer
    x = 100,304.89

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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.