Home / 102,279.12-141,072.48-68,270.46

Finding the Fourth Proportional to 102,279.12, 141,072.48 and 68,270.46

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Solution

The fourth proportional to 102,279.12, 141,072.48 and 68,270.46 is: 94,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,279.12 : 141,072.48 = 68,270.46 : x
  2. Step 2: Convert to fraction form
    102,279.12/141,072.48 = 68,270.46/x
  3. Step 3: Cross multiply
    102,279.12x = 141,072.48 × 68,270.46
  4. Step 4: Simplify right side
    102,279.12x = 9,631,083,102.94
  5. Step 5: Solve for x
    x = 9,631,083,102.94/102,279.12
  6. Step 6: Final answer
    x = 94,164.70

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1.5x scale

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.