Home / 101,219.02-139,680.66-55,895.88

Finding the Fourth Proportional to 101,219.02, 139,680.66 and 55,895.88

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Solution

The fourth proportional to 101,219.02, 139,680.66 and 55,895.88 is: 77,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,219.02 : 139,680.66 = 55,895.88 : x
  2. Step 2: Convert to fraction form
    101,219.02/139,680.66 = 55,895.88/x
  3. Step 3: Cross multiply
    101,219.02x = 139,680.66 × 55,895.88
  4. Step 4: Simplify right side
    101,219.02x = 7,807,573,409.68
  5. Step 5: Solve for x
    x = 7,807,573,409.68/101,219.02
  6. Step 6: Final answer
    x = 77,135.44

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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.