Home / 131,168.95-181,007.80-77,471.35

Finding the Fourth Proportional to 131,168.95, 181,007.80 and 77,471.35

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Solution

The fourth proportional to 131,168.95, 181,007.80 and 77,471.35 is: 106,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,168.95 : 181,007.80 = 77,471.35 : x
  2. Step 2: Convert to fraction form
    131,168.95/181,007.80 = 77,471.35/x
  3. Step 3: Cross multiply
    131,168.95x = 181,007.80 × 77,471.35
  4. Step 4: Simplify right side
    131,168.95x = 14,022,918,626.53
  5. Step 5: Solve for x
    x = 14,022,918,626.53/131,168.95
  6. Step 6: Final answer
    x = 106,907.30

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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.