Home / 236,458.62-326,313.72-129,031.02

Finding the Fourth Proportional to 236,458.62, 326,313.72 and 129,031.02

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Solution

The fourth proportional to 236,458.62, 326,313.72 and 129,031.02 is: 178,063.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,458.62 : 326,313.72 = 129,031.02 : x
  2. Step 2: Convert to fraction form
    236,458.62/326,313.72 = 129,031.02/x
  3. Step 3: Cross multiply
    236,458.62x = 326,313.72 × 129,031.02
  4. Step 4: Simplify right side
    236,458.62x = 42,104,592,131.59
  5. Step 5: Solve for x
    x = 42,104,592,131.59/236,458.62
  6. Step 6: Final answer
    x = 178,063.26

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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.