Home / 131,807.68-181,880.94-74,442.04

Finding the Fourth Proportional to 131,807.68, 181,880.94 and 74,442.04

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Solution

The fourth proportional to 131,807.68, 181,880.94 and 74,442.04 is: 102,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,807.68 : 181,880.94 = 74,442.04 : x
  2. Step 2: Convert to fraction form
    131,807.68/181,880.94 = 74,442.04/x
  3. Step 3: Cross multiply
    131,807.68x = 181,880.94 × 74,442.04
  4. Step 4: Simplify right side
    131,807.68x = 13,539,588,210.72
  5. Step 5: Solve for x
    x = 13,539,588,210.72/131,807.68
  6. Step 6: Final answer
    x = 102,722.30

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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.