Home / 131,480.04-181,442.42-71,864.04

Finding the Fourth Proportional to 131,480.04, 181,442.42 and 71,864.04

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Solution

The fourth proportional to 131,480.04, 181,442.42 and 71,864.04 is: 99,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,480.04 : 181,442.42 = 71,864.04 : x
  2. Step 2: Convert to fraction form
    131,480.04/181,442.42 = 71,864.04/x
  3. Step 3: Cross multiply
    131,480.04x = 181,442.42 × 71,864.04
  4. Step 4: Simplify right side
    131,480.04x = 13,039,185,328.58
  5. Step 5: Solve for x
    x = 13,039,185,328.58/131,480.04
  6. Step 6: Final answer
    x = 99,172.36

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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.