Home / 101,289.02-139,775.91-55,966.28

Finding the Fourth Proportional to 101,289.02, 139,775.91 and 55,966.28

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Solution

The fourth proportional to 101,289.02, 139,775.91 and 55,966.28 is: 77,231.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,289.02 : 139,775.91 = 55,966.28 : x
  2. Step 2: Convert to fraction form
    101,289.02/139,775.91 = 55,966.28/x
  3. Step 3: Cross multiply
    101,289.02x = 139,775.91 × 55,966.28
  4. Step 4: Simplify right side
    101,289.02x = 7,822,737,716.31
  5. Step 5: Solve for x
    x = 7,822,737,716.31/101,289.02
  6. Step 6: Final answer
    x = 77,231.84

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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.