Home / 187,260.10-280,890.15-81,967.30

Finding the Fourth Proportional to 187,260.10, 280,890.15 and 81,967.30

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Solution

The fourth proportional to 187,260.10, 280,890.15 and 81,967.30 is: 122,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,260.10 : 280,890.15 = 81,967.30 : x
  2. Step 2: Convert to fraction form
    187,260.10/280,890.15 = 81,967.30/x
  3. Step 3: Cross multiply
    187,260.10x = 280,890.15 × 81,967.30
  4. Step 4: Simplify right side
    187,260.10x = 23,023,807,192.10
  5. Step 5: Solve for x
    x = 23,023,807,192.10/187,260.10
  6. Step 6: Final answer
    x = 122,950.95

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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.