Home / 102,166.22-140,985.81-56,221.56

Finding the Fourth Proportional to 102,166.22, 140,985.81 and 56,221.56

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Solution

The fourth proportional to 102,166.22, 140,985.81 and 56,221.56 is: 77,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,166.22 : 140,985.81 = 56,221.56 : x
  2. Step 2: Convert to fraction form
    102,166.22/140,985.81 = 56,221.56/x
  3. Step 3: Cross multiply
    102,166.22x = 140,985.81 × 56,221.56
  4. Step 4: Simplify right side
    102,166.22x = 7,926,442,176.06
  5. Step 5: Solve for x
    x = 7,926,442,176.06/102,166.22
  6. Step 6: Final answer
    x = 77,583.78

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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.