Home / 102,503.46-141,455.88-57,181.08

Finding the Fourth Proportional to 102,503.46, 141,455.88 and 57,181.08

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Solution

The fourth proportional to 102,503.46, 141,455.88 and 57,181.08 is: 78,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,503.46 : 141,455.88 = 57,181.08 : x
  2. Step 2: Convert to fraction form
    102,503.46/141,455.88 = 57,181.08/x
  3. Step 3: Cross multiply
    102,503.46x = 141,455.88 × 57,181.08
  4. Step 4: Simplify right side
    102,503.46x = 8,088,599,990.75
  5. Step 5: Solve for x
    x = 8,088,599,990.75/102,503.46
  6. Step 6: Final answer
    x = 78,910.51

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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.