Home / 132,668.52-183,081.42-72,239.10

Finding the Fourth Proportional to 132,668.52, 183,081.42 and 72,239.10

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Solution

The fourth proportional to 132,668.52, 183,081.42 and 72,239.10 is: 99,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,668.52 : 183,081.42 = 72,239.10 : x
  2. Step 2: Convert to fraction form
    132,668.52/183,081.42 = 72,239.10/x
  3. Step 3: Cross multiply
    132,668.52x = 183,081.42 × 72,239.10
  4. Step 4: Simplify right side
    132,668.52x = 13,225,637,007.52
  5. Step 5: Solve for x
    x = 13,225,637,007.52/132,668.52
  6. Step 6: Final answer
    x = 99,689.34

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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.