Home / 132,642.48-183,043.92-72,214.32

Finding the Fourth Proportional to 132,642.48, 183,043.92 and 72,214.32

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Solution

The fourth proportional to 132,642.48, 183,043.92 and 72,214.32 is: 99,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,642.48 : 183,043.92 = 72,214.32 : x
  2. Step 2: Convert to fraction form
    132,642.48/183,043.92 = 72,214.32/x
  3. Step 3: Cross multiply
    132,642.48x = 183,043.92 × 72,214.32
  4. Step 4: Simplify right side
    132,642.48x = 13,218,392,212.93
  5. Step 5: Solve for x
    x = 13,218,392,212.93/132,642.48
  6. Step 6: Final answer
    x = 99,654.29

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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.