Home / 155,266.88-214,234.08-98,761.28

Finding the Fourth Proportional to 155,266.88, 214,234.08 and 98,761.28

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Solution

The fourth proportional to 155,266.88, 214,234.08 and 98,761.28 is: 136,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,266.88 : 214,234.08 = 98,761.28 : x
  2. Step 2: Convert to fraction form
    155,266.88/214,234.08 = 98,761.28/x
  3. Step 3: Cross multiply
    155,266.88x = 214,234.08 × 98,761.28
  4. Step 4: Simplify right side
    155,266.88x = 21,158,031,960.42
  5. Step 5: Solve for x
    x = 21,158,031,960.42/155,266.88
  6. Step 6: Final answer
    x = 136,268.80

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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.