Home / 101,148.73-139,585.12-55,826.80

Finding the Fourth Proportional to 101,148.73, 139,585.12 and 55,826.80

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Solution

The fourth proportional to 101,148.73, 139,585.12 and 55,826.80 is: 77,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,148.73 : 139,585.12 = 55,826.80 : x
  2. Step 2: Convert to fraction form
    101,148.73/139,585.12 = 55,826.80/x
  3. Step 3: Cross multiply
    101,148.73x = 139,585.12 × 55,826.80
  4. Step 4: Simplify right side
    101,148.73x = 7,792,590,298.08
  5. Step 5: Solve for x
    x = 7,792,590,298.08/101,148.73
  6. Step 6: Final answer
    x = 77,040.91

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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.