Home / 132,668.16-183,078.54-72,237.48

Finding the Fourth Proportional to 132,668.16, 183,078.54 and 72,237.48

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Solution

The fourth proportional to 132,668.16, 183,078.54 and 72,237.48 is: 99,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,668.16 : 183,078.54 = 72,237.48 : x
  2. Step 2: Convert to fraction form
    132,668.16/183,078.54 = 72,237.48/x
  3. Step 3: Cross multiply
    132,668.16x = 183,078.54 × 72,237.48
  4. Step 4: Simplify right side
    132,668.16x = 13,225,132,371.68
  5. Step 5: Solve for x
    x = 13,225,132,371.68/132,668.16
  6. Step 6: Final answer
    x = 99,685.81

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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.