Home / 187,218.10-280,827.15-81,925.30

Finding the Fourth Proportional to 187,218.10, 280,827.15 and 81,925.30

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Solution

The fourth proportional to 187,218.10, 280,827.15 and 81,925.30 is: 122,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,218.10 : 280,827.15 = 81,925.30 : x
  2. Step 2: Convert to fraction form
    187,218.10/280,827.15 = 81,925.30/x
  3. Step 3: Cross multiply
    187,218.10x = 280,827.15 × 81,925.30
  4. Step 4: Simplify right side
    187,218.10x = 23,006,848,511.90
  5. Step 5: Solve for x
    x = 23,006,848,511.90/187,218.10
  6. Step 6: Final answer
    x = 122,887.95

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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.