Home / 132,979.84-183,512.60-72,551.72

Finding the Fourth Proportional to 132,979.84, 183,512.60 and 72,551.72

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Solution

The fourth proportional to 132,979.84, 183,512.60 and 72,551.72 is: 100,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,979.84 : 183,512.60 = 72,551.72 : x
  2. Step 2: Convert to fraction form
    132,979.84/183,512.60 = 72,551.72/x
  3. Step 3: Cross multiply
    132,979.84x = 183,512.60 × 72,551.72
  4. Step 4: Simplify right side
    132,979.84x = 13,314,154,771.67
  5. Step 5: Solve for x
    x = 13,314,154,771.67/132,979.84
  6. Step 6: Final answer
    x = 100,121.60

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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.