Home / 125,529.66-189,158.00-103,831.38

Finding the Fourth Proportional to 125,529.66, 189,158.00 and 103,831.38

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Solution

The fourth proportional to 125,529.66, 189,158.00 and 103,831.38 is: 156,461.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,529.66 : 189,158.00 = 103,831.38 : x
  2. Step 2: Convert to fraction form
    125,529.66/189,158.00 = 103,831.38/x
  3. Step 3: Cross multiply
    125,529.66x = 189,158.00 × 103,831.38
  4. Step 4: Simplify right side
    125,529.66x = 19,640,535,658.88
  5. Step 5: Solve for x
    x = 19,640,535,658.88/125,529.66
  6. Step 6: Final answer
    x = 156,461.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.