Home / 236,815.53-326,795.72-129,389.25

Finding the Fourth Proportional to 236,815.53, 326,795.72 and 129,389.25

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Solution

The fourth proportional to 236,815.53, 326,795.72 and 129,389.25 is: 178,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,815.53 : 326,795.72 = 129,389.25 : x
  2. Step 2: Convert to fraction form
    236,815.53/326,795.72 = 129,389.25/x
  3. Step 3: Cross multiply
    236,815.53x = 326,795.72 × 129,389.25
  4. Step 4: Simplify right side
    236,815.53x = 42,283,852,467.06
  5. Step 5: Solve for x
    x = 42,283,852,467.06/236,815.53
  6. Step 6: Final answer
    x = 178,551.86

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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.