Home / 131,178.49-181,009.69-74,591.08

Finding the Fourth Proportional to 131,178.49, 181,009.69 and 74,591.08

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Solution

The fourth proportional to 131,178.49, 181,009.69 and 74,591.08 is: 102,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,178.49 : 181,009.69 = 74,591.08 : x
  2. Step 2: Convert to fraction form
    131,178.49/181,009.69 = 74,591.08/x
  3. Step 3: Cross multiply
    131,178.49x = 181,009.69 × 74,591.08
  4. Step 4: Simplify right side
    131,178.49x = 13,501,708,267.57
  5. Step 5: Solve for x
    x = 13,501,708,267.57/131,178.49
  6. Step 6: Final answer
    x = 102,926.24

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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.