Home / 131,578.56-181,573.92-75,008.16

Finding the Fourth Proportional to 131,578.56, 181,573.92 and 75,008.16

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Solution

The fourth proportional to 131,578.56, 181,573.92 and 75,008.16 is: 103,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578.56 : 181,573.92 = 75,008.16 : x
  2. Step 2: Convert to fraction form
    131,578.56/181,573.92 = 75,008.16/x
  3. Step 3: Cross multiply
    131,578.56x = 181,573.92 × 75,008.16
  4. Step 4: Simplify right side
    131,578.56x = 13,619,525,643.19
  5. Step 5: Solve for x
    x = 13,619,525,643.19/131,578.56
  6. Step 6: Final answer
    x = 103,508.70

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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.