Home / 236,517.98-326,395.71-129,090.38

Finding the Fourth Proportional to 236,517.98, 326,395.71 and 129,090.38

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Solution

The fourth proportional to 236,517.98, 326,395.71 and 129,090.38 is: 178,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,517.98 : 326,395.71 = 129,090.38 : x
  2. Step 2: Convert to fraction form
    236,517.98/326,395.71 = 129,090.38/x
  3. Step 3: Cross multiply
    236,517.98x = 326,395.71 × 129,090.38
  4. Step 4: Simplify right side
    236,517.98x = 42,134,544,602.29
  5. Step 5: Solve for x
    x = 42,134,544,602.29/236,517.98
  6. Step 6: Final answer
    x = 178,145.21

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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.