Home / 131,400.33-181,332.63-74,811.69

Finding the Fourth Proportional to 131,400.33, 181,332.63 and 74,811.69

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Solution

The fourth proportional to 131,400.33, 181,332.63 and 74,811.69 is: 103,240.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,400.33 : 181,332.63 = 74,811.69 : x
  2. Step 2: Convert to fraction form
    131,400.33/181,332.63 = 74,811.69/x
  3. Step 3: Cross multiply
    131,400.33x = 181,332.63 × 74,811.69
  4. Step 4: Simplify right side
    131,400.33x = 13,565,800,502.44
  5. Step 5: Solve for x
    x = 13,565,800,502.44/131,400.33
  6. Step 6: Final answer
    x = 103,240.23

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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.