Home / 132,817.13-183,287.78-72,387.82

Finding the Fourth Proportional to 132,817.13, 183,287.78 and 72,387.82

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Solution

The fourth proportional to 132,817.13, 183,287.78 and 72,387.82 is: 99,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,817.13 : 183,287.78 = 72,387.82 : x
  2. Step 2: Convert to fraction form
    132,817.13/183,287.78 = 72,387.82/x
  3. Step 3: Cross multiply
    132,817.13x = 183,287.78 × 72,387.82
  4. Step 4: Simplify right side
    132,817.13x = 13,267,802,826.84
  5. Step 5: Solve for x
    x = 13,267,802,826.84/132,817.13
  6. Step 6: Final answer
    x = 99,895.27

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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.