Home / 99,118.44-136,897.02-65,278.26

Finding the Fourth Proportional to 99,118.44, 136,897.02 and 65,278.26

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Solution

The fourth proportional to 99,118.44, 136,897.02 and 65,278.26 is: 90,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,118.44 : 136,897.02 = 65,278.26 : x
  2. Step 2: Convert to fraction form
    99,118.44/136,897.02 = 65,278.26/x
  3. Step 3: Cross multiply
    99,118.44x = 136,897.02 × 65,278.26
  4. Step 4: Simplify right side
    99,118.44x = 8,936,399,264.79
  5. Step 5: Solve for x
    x = 8,936,399,264.79/99,118.44
  6. Step 6: Final answer
    x = 90,158.80

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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.