Home / 129,977.10-194,966.73-45,737.91

Finding the Fourth Proportional to 129,977.10, 194,966.73 and 45,737.91

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Solution

The fourth proportional to 129,977.10, 194,966.73 and 45,737.91 is: 68,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,977.10 : 194,966.73 = 45,737.91 : x
  2. Step 2: Convert to fraction form
    129,977.10/194,966.73 = 45,737.91/x
  3. Step 3: Cross multiply
    129,977.10x = 194,966.73 × 45,737.91
  4. Step 4: Simplify right side
    129,977.10x = 8,917,370,749.73
  5. Step 5: Solve for x
    x = 8,917,370,749.73/129,977.10
  6. Step 6: Final answer
    x = 68,607.25

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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.