Home / 101,008.04-139,392.00-55,687.63

Finding the Fourth Proportional to 101,008.04, 139,392.00 and 55,687.63

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Solution

The fourth proportional to 101,008.04, 139,392.00 and 55,687.63 is: 76,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,008.04 : 139,392.00 = 55,687.63 : x
  2. Step 2: Convert to fraction form
    101,008.04/139,392.00 = 55,687.63/x
  3. Step 3: Cross multiply
    101,008.04x = 139,392.00 × 55,687.63
  4. Step 4: Simplify right side
    101,008.04x = 7,762,410,608.66
  5. Step 5: Solve for x
    x = 7,762,410,608.66/101,008.04
  6. Step 6: Final answer
    x = 76,849.43

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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.