Home / 236,642.12-326,564.83-129,211.38

Finding the Fourth Proportional to 236,642.12, 326,564.83 and 129,211.38

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Solution

The fourth proportional to 236,642.12, 326,564.83 and 129,211.38 is: 178,311.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,642.12 : 326,564.83 = 129,211.38 : x
  2. Step 2: Convert to fraction form
    236,642.12/326,564.83 = 129,211.38/x
  3. Step 3: Cross multiply
    236,642.12x = 326,564.83 × 129,211.38
  4. Step 4: Simplify right side
    236,642.12x = 42,195,892,020.74
  5. Step 5: Solve for x
    x = 42,195,892,020.74/236,642.12
  6. Step 6: Final answer
    x = 178,311.00

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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.