Home / 131,171.02-181,015.26-74,582.40

Finding the Fourth Proportional to 131,171.02, 181,015.26 and 74,582.40

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Solution

The fourth proportional to 131,171.02, 181,015.26 and 74,582.40 is: 102,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,171.02 : 181,015.26 = 74,582.40 : x
  2. Step 2: Convert to fraction form
    131,171.02/181,015.26 = 74,582.40/x
  3. Step 3: Cross multiply
    131,171.02x = 181,015.26 × 74,582.40
  4. Step 4: Simplify right side
    131,171.02x = 13,500,551,399.23
  5. Step 5: Solve for x
    x = 13,500,551,399.23/131,171.02
  6. Step 6: Final answer
    x = 102,923.28

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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.