Home / 101,212.02-139,669.79-55,889.15

Finding the Fourth Proportional to 101,212.02, 139,669.79 and 55,889.15

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Solution

The fourth proportional to 101,212.02, 139,669.79 and 55,889.15 is: 77,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,212.02 : 139,669.79 = 55,889.15 : x
  2. Step 2: Convert to fraction form
    101,212.02/139,669.79 = 55,889.15/x
  3. Step 3: Cross multiply
    101,212.02x = 139,669.79 × 55,889.15
  4. Step 4: Simplify right side
    101,212.02x = 7,806,024,865.98
  5. Step 5: Solve for x
    x = 7,806,024,865.98/101,212.02
  6. Step 6: Final answer
    x = 77,125.47

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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.