Home / 187,141.40-280,823.28-68,895.80

Finding the Fourth Proportional to 187,141.40, 280,823.28 and 68,895.80

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Solution

The fourth proportional to 187,141.40, 280,823.28 and 68,895.80 is: 103,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,141.40 : 280,823.28 = 68,895.80 : x
  2. Step 2: Convert to fraction form
    187,141.40/280,823.28 = 68,895.80/x
  3. Step 3: Cross multiply
    187,141.40x = 280,823.28 × 68,895.80
  4. Step 4: Simplify right side
    187,141.40x = 19,347,544,534.22
  5. Step 5: Solve for x
    x = 19,347,544,534.22/187,141.40
  6. Step 6: Final answer
    x = 103,384.63

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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.