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Finding the Fourth Proportional to 155,264.88, 214,231.32 and 98,759.28

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Solution

The fourth proportional to 155,264.88, 214,231.32 and 98,759.28 is: 136,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,264.88 : 214,231.32 = 98,759.28 : x
  2. Step 2: Convert to fraction form
    155,264.88/214,231.32 = 98,759.28/x
  3. Step 3: Cross multiply
    155,264.88x = 214,231.32 × 98,759.28
  4. Step 4: Simplify right side
    155,264.88x = 21,157,330,916.65
  5. Step 5: Solve for x
    x = 21,157,330,916.65/155,264.88
  6. Step 6: Final answer
    x = 136,266.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.