Home / 102,486.17-141,431.15-57,163.03

Finding the Fourth Proportional to 102,486.17, 141,431.15 and 57,163.03

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Solution

The fourth proportional to 102,486.17, 141,431.15 and 57,163.03 is: 78,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,486.17 : 141,431.15 = 57,163.03 : x
  2. Step 2: Convert to fraction form
    102,486.17/141,431.15 = 57,163.03/x
  3. Step 3: Cross multiply
    102,486.17x = 141,431.15 × 57,163.03
  4. Step 4: Simplify right side
    102,486.17x = 8,084,633,070.38
  5. Step 5: Solve for x
    x = 8,084,633,070.38/102,486.17
  6. Step 6: Final answer
    x = 78,885.11

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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.