Home / 131,426.08-181,367.81-74,837.45

Finding the Fourth Proportional to 131,426.08, 181,367.81 and 74,837.45

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Solution

The fourth proportional to 131,426.08, 181,367.81 and 74,837.45 is: 103,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.08 : 181,367.81 = 74,837.45 : x
  2. Step 2: Convert to fraction form
    131,426.08/181,367.81 = 74,837.45/x
  3. Step 3: Cross multiply
    131,426.08x = 181,367.81 × 74,837.45
  4. Step 4: Simplify right side
    131,426.08x = 13,573,104,772.36
  5. Step 5: Solve for x
    x = 13,573,104,772.36/131,426.08
  6. Step 6: Final answer
    x = 103,275.58

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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.