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Finding the Fourth Proportional to 109,541.58, 151,030.41 and 91,418.37

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Solution

The fourth proportional to 109,541.58, 151,030.41 and 91,418.37 is: 126,043.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,541.58 : 151,030.41 = 91,418.37 : x
  2. Step 2: Convert to fraction form
    109,541.58/151,030.41 = 91,418.37/x
  3. Step 3: Cross multiply
    109,541.58x = 151,030.41 × 91,418.37
  4. Step 4: Simplify right side
    109,541.58x = 13,806,953,902.63
  5. Step 5: Solve for x
    x = 13,806,953,902.63/109,541.58
  6. Step 6: Final answer
    x = 126,043.04

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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.