Home / 101,130.33-139,557.30-55,807.71

Finding the Fourth Proportional to 101,130.33, 139,557.30 and 55,807.71

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Solution

The fourth proportional to 101,130.33, 139,557.30 and 55,807.71 is: 77,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,130.33 : 139,557.30 = 55,807.71 : x
  2. Step 2: Convert to fraction form
    101,130.33/139,557.30 = 55,807.71/x
  3. Step 3: Cross multiply
    101,130.33x = 139,557.30 × 55,807.71
  4. Step 4: Simplify right side
    101,130.33x = 7,788,373,326.78
  5. Step 5: Solve for x
    x = 7,788,373,326.78/101,130.33
  6. Step 6: Final answer
    x = 77,013.23

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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.