Home / 102,072.88-140,858.04-57,363.76

Finding the Fourth Proportional to 102,072.88, 140,858.04 and 57,363.76

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Solution

The fourth proportional to 102,072.88, 140,858.04 and 57,363.76 is: 79,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,072.88 : 140,858.04 = 57,363.76 : x
  2. Step 2: Convert to fraction form
    102,072.88/140,858.04 = 57,363.76/x
  3. Step 3: Cross multiply
    102,072.88x = 140,858.04 × 57,363.76
  4. Step 4: Simplify right side
    102,072.88x = 8,080,146,800.63
  5. Step 5: Solve for x
    x = 8,080,146,800.63/102,072.88
  6. Step 6: Final answer
    x = 79,160.56

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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.