Home / 132,979.06-183,492.91-76,390.42

Finding the Fourth Proportional to 132,979.06, 183,492.91 and 76,390.42

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Solution

The fourth proportional to 132,979.06, 183,492.91 and 76,390.42 is: 105,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,979.06 : 183,492.91 = 76,390.42 : x
  2. Step 2: Convert to fraction form
    132,979.06/183,492.91 = 76,390.42/x
  3. Step 3: Cross multiply
    132,979.06x = 183,492.91 × 76,390.42
  4. Step 4: Simplify right side
    132,979.06x = 14,017,100,461.92
  5. Step 5: Solve for x
    x = 14,017,100,461.92/132,979.06
  6. Step 6: Final answer
    x = 105,408.33

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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.