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Finding the Fourth Proportional to 102,610, 141,511.08 and 66,766.96

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Solution

The fourth proportional to 102,610, 141,511.08 and 66,766.96 is: 92,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,610 : 141,511.08 = 66,766.96 : x
  2. Step 2: Convert to fraction form
    102,610/141,511.08 = 66,766.96/x
  3. Step 3: Cross multiply
    102,610x = 141,511.08 × 66,766.96
  4. Step 4: Simplify right side
    102,610x = 9,448,264,617.92
  5. Step 5: Solve for x
    x = 9,448,264,617.92/102,610
  6. Step 6: Final answer
    x = 92,079.37

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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.