Home / 187,225.16-280,948.72-68,979.48

Finding the Fourth Proportional to 187,225.16, 280,948.72 and 68,979.48

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Solution

The fourth proportional to 187,225.16, 280,948.72 and 68,979.48 is: 103,510.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,225.16 : 280,948.72 = 68,979.48 : x
  2. Step 2: Convert to fraction form
    187,225.16/280,948.72 = 68,979.48/x
  3. Step 3: Cross multiply
    187,225.16x = 280,948.72 × 68,979.48
  4. Step 4: Simplify right side
    187,225.16x = 19,379,696,612.27
  5. Step 5: Solve for x
    x = 19,379,696,612.27/187,225.16
  6. Step 6: Final answer
    x = 103,510.11

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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.