Home / 101,819.41-140,508.63-56,496.40

Finding the Fourth Proportional to 101,819.41, 140,508.63 and 56,496.40

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Solution

The fourth proportional to 101,819.41, 140,508.63 and 56,496.40 is: 77,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,819.41 : 140,508.63 = 56,496.40 : x
  2. Step 2: Convert to fraction form
    101,819.41/140,508.63 = 56,496.40/x
  3. Step 3: Cross multiply
    101,819.41x = 140,508.63 × 56,496.40
  4. Step 4: Simplify right side
    101,819.41x = 7,938,231,412.66
  5. Step 5: Solve for x
    x = 7,938,231,412.66/101,819.41
  6. Step 6: Final answer
    x = 77,963.83

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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.