Home / 187,219.10-280,828.65-81,926.30

Finding the Fourth Proportional to 187,219.10, 280,828.65 and 81,926.30

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Solution

The fourth proportional to 187,219.10, 280,828.65 and 81,926.30 is: 122,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,219.10 : 280,828.65 = 81,926.30 : x
  2. Step 2: Convert to fraction form
    187,219.10/280,828.65 = 81,926.30/x
  3. Step 3: Cross multiply
    187,219.10x = 280,828.65 × 81,926.30
  4. Step 4: Simplify right side
    187,219.10x = 23,007,252,228.50
  5. Step 5: Solve for x
    x = 23,007,252,228.50/187,219.10
  6. Step 6: Final answer
    x = 122,889.45

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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.