Home / 149,409.71-206,178.41-84,877.37

Finding the Fourth Proportional to 149,409.71, 206,178.41 and 84,877.37

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Solution

The fourth proportional to 149,409.71, 206,178.41 and 84,877.37 is: 117,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,409.71 : 206,178.41 = 84,877.37 : x
  2. Step 2: Convert to fraction form
    149,409.71/206,178.41 = 84,877.37/x
  3. Step 3: Cross multiply
    149,409.71x = 206,178.41 × 84,877.37
  4. Step 4: Simplify right side
    149,409.71x = 17,499,881,146.05
  5. Step 5: Solve for x
    x = 17,499,881,146.05/149,409.71
  6. Step 6: Final answer
    x = 117,126.80

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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.