Home / 133,109.79-183,695.30-72,684.27

Finding the Fourth Proportional to 133,109.79, 183,695.30 and 72,684.27

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Solution

The fourth proportional to 133,109.79, 183,695.30 and 72,684.27 is: 100,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,109.79 : 183,695.30 = 72,684.27 : x
  2. Step 2: Convert to fraction form
    133,109.79/183,695.30 = 72,684.27/x
  3. Step 3: Cross multiply
    133,109.79x = 183,695.30 × 72,684.27
  4. Step 4: Simplify right side
    133,109.79x = 13,351,758,419.51
  5. Step 5: Solve for x
    x = 13,351,758,419.51/133,109.79
  6. Step 6: Final answer
    x = 100,306.36

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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.