Home / 102,072.29-140,863.37-56,763.13

Finding the Fourth Proportional to 102,072.29, 140,863.37 and 56,763.13

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Solution

The fourth proportional to 102,072.29, 140,863.37 and 56,763.13 is: 78,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,072.29 : 140,863.37 = 56,763.13 : x
  2. Step 2: Convert to fraction form
    102,072.29/140,863.37 = 56,763.13/x
  3. Step 3: Cross multiply
    102,072.29x = 140,863.37 × 56,763.13
  4. Step 4: Simplify right side
    102,072.29x = 7,995,845,783.55
  5. Step 5: Solve for x
    x = 7,995,845,783.55/102,072.29
  6. Step 6: Final answer
    x = 78,335.13

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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.