Home / 187,030.20-280,545.30-76,222.20

Finding the Fourth Proportional to 187,030.20, 280,545.30 and 76,222.20

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Solution

The fourth proportional to 187,030.20, 280,545.30 and 76,222.20 is: 114,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,030.20 : 280,545.30 = 76,222.20 : x
  2. Step 2: Convert to fraction form
    187,030.20/280,545.30 = 76,222.20/x
  3. Step 3: Cross multiply
    187,030.20x = 280,545.30 × 76,222.20
  4. Step 4: Simplify right side
    187,030.20x = 21,383,779,965.66
  5. Step 5: Solve for x
    x = 21,383,779,965.66/187,030.20
  6. Step 6: Final answer
    x = 114,333.30

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1.5x scale

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.