Home / 236,810.72-326,803.50-129,387.42

Finding the Fourth Proportional to 236,810.72, 326,803.50 and 129,387.42

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Solution

The fourth proportional to 236,810.72, 326,803.50 and 129,387.42 is: 178,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,810.72 : 326,803.50 = 129,387.42 : x
  2. Step 2: Convert to fraction form
    236,810.72/326,803.50 = 129,387.42/x
  3. Step 3: Cross multiply
    236,810.72x = 326,803.50 × 129,387.42
  4. Step 4: Simplify right side
    236,810.72x = 42,284,261,711.97
  5. Step 5: Solve for x
    x = 42,284,261,711.97/236,810.72
  6. Step 6: Final answer
    x = 178,557.21

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1.5x scale

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.