Home / 86,265.20-119,003.99-74,307.78

Finding the Fourth Proportional to 86,265.20, 119,003.99 and 74,307.78

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Solution

The fourth proportional to 86,265.20, 119,003.99 and 74,307.78 is: 102,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,265.20 : 119,003.99 = 74,307.78 : x
  2. Step 2: Convert to fraction form
    86,265.20/119,003.99 = 74,307.78/x
  3. Step 3: Cross multiply
    86,265.20x = 119,003.99 × 74,307.78
  4. Step 4: Simplify right side
    86,265.20x = 8,842,921,936.50
  5. Step 5: Solve for x
    x = 8,842,921,936.50/86,265.20
  6. Step 6: Final answer
    x = 102,508.56

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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.