Home / 187,220.16-280,941.21-68,974.47

Finding the Fourth Proportional to 187,220.16, 280,941.21 and 68,974.47

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Solution

The fourth proportional to 187,220.16, 280,941.21 and 68,974.47 is: 103,502.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,220.16 : 280,941.21 = 68,974.47 : x
  2. Step 2: Convert to fraction form
    187,220.16/280,941.21 = 68,974.47/x
  3. Step 3: Cross multiply
    187,220.16x = 280,941.21 × 68,974.47
  4. Step 4: Simplify right side
    187,220.16x = 19,377,771,060.91
  5. Step 5: Solve for x
    x = 19,377,771,060.91/187,220.16
  6. Step 6: Final answer
    x = 103,502.59

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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.