Home / 102,316.82-141,218.99-68,763.38

Finding the Fourth Proportional to 102,316.82, 141,218.99 and 68,763.38

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Solution

The fourth proportional to 102,316.82, 141,218.99 and 68,763.38 is: 94,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,316.82 : 141,218.99 = 68,763.38 : x
  2. Step 2: Convert to fraction form
    102,316.82/141,218.99 = 68,763.38/x
  3. Step 3: Cross multiply
    102,316.82x = 141,218.99 × 68,763.38
  4. Step 4: Simplify right side
    102,316.82x = 9,710,694,022.67
  5. Step 5: Solve for x
    x = 9,710,694,022.67/102,316.82
  6. Step 6: Final answer
    x = 94,908.10

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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.