Home / 236,939.04-326,975.02-129,509

Finding the Fourth Proportional to 236,939.04, 326,975.02 and 129,509

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Solution

The fourth proportional to 236,939.04, 326,975.02 and 129,509 is: 178,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,939.04 : 326,975.02 = 129,509 : x
  2. Step 2: Convert to fraction form
    236,939.04/326,975.02 = 129,509/x
  3. Step 3: Cross multiply
    236,939.04x = 326,975.02 × 129,509
  4. Step 4: Simplify right side
    236,939.04x = 42,346,207,865.18
  5. Step 5: Solve for x
    x = 42,346,207,865.18/236,939.04
  6. Step 6: Final answer
    x = 178,721.95

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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.