Home / 125,400.77-188,107.31-50,510.81

Finding the Fourth Proportional to 125,400.77, 188,107.31 and 50,510.81

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Solution

The fourth proportional to 125,400.77, 188,107.31 and 50,510.81 is: 75,768.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,400.77 : 188,107.31 = 50,510.81 : x
  2. Step 2: Convert to fraction form
    125,400.77/188,107.31 = 50,510.81/x
  3. Step 3: Cross multiply
    125,400.77x = 188,107.31 × 50,510.81
  4. Step 4: Simplify right side
    125,400.77x = 9,501,452,133.46
  5. Step 5: Solve for x
    x = 9,501,452,133.46/125,400.77
  6. Step 6: Final answer
    x = 75,768.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.