Home / 131,138.13-195,960.63-98,467.32

Finding the Fourth Proportional to 131,138.13, 195,960.63 and 98,467.32

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Solution

The fourth proportional to 131,138.13, 195,960.63 and 98,467.32 is: 147,140.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138.13 : 195,960.63 = 98,467.32 : x
  2. Step 2: Convert to fraction form
    131,138.13/195,960.63 = 98,467.32/x
  3. Step 3: Cross multiply
    131,138.13x = 195,960.63 × 98,467.32
  4. Step 4: Simplify right side
    131,138.13x = 19,295,718,061.61
  5. Step 5: Solve for x
    x = 19,295,718,061.61/131,138.13
  6. Step 6: Final answer
    x = 147,140.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.