Home / 129,776.60-194,664.90-112,669.40

Finding the Fourth Proportional to 129,776.60, 194,664.90 and 112,669.40

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Solution

The fourth proportional to 129,776.60, 194,664.90 and 112,669.40 is: 169,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,776.60 : 194,664.90 = 112,669.40 : x
  2. Step 2: Convert to fraction form
    129,776.60/194,664.90 = 112,669.40/x
  3. Step 3: Cross multiply
    129,776.60x = 194,664.90 × 112,669.40
  4. Step 4: Simplify right side
    129,776.60x = 21,932,777,484.06
  5. Step 5: Solve for x
    x = 21,932,777,484.06/129,776.60
  6. Step 6: Final answer
    x = 169,004.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.