Home / 251,206.79-376,780.08-82,685.21

Finding the Fourth Proportional to 251,206.79, 376,780.08 and 82,685.21

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Solution

The fourth proportional to 251,206.79, 376,780.08 and 82,685.21 is: 124,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,206.79 : 376,780.08 = 82,685.21 : x
  2. Step 2: Convert to fraction form
    251,206.79/376,780.08 = 82,685.21/x
  3. Step 3: Cross multiply
    251,206.79x = 376,780.08 × 82,685.21
  4. Step 4: Simplify right side
    251,206.79x = 31,154,140,038.62
  5. Step 5: Solve for x
    x = 31,154,140,038.62/251,206.79
  6. Step 6: Final answer
    x = 124,017.91

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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.