Home / 133,301.40-183,956.28-72,872.76

Finding the Fourth Proportional to 133,301.40, 183,956.28 and 72,872.76

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Solution

The fourth proportional to 133,301.40, 183,956.28 and 72,872.76 is: 100,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,301.40 : 183,956.28 = 72,872.76 : x
  2. Step 2: Convert to fraction form
    133,301.40/183,956.28 = 72,872.76/x
  3. Step 3: Cross multiply
    133,301.40x = 183,956.28 × 72,872.76
  4. Step 4: Simplify right side
    133,301.40x = 13,405,401,842.93
  5. Step 5: Solve for x
    x = 13,405,401,842.93/133,301.40
  6. Step 6: Final answer
    x = 100,564.60

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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.