Home / 236,643.46-326,568.38-129,211.20

Finding the Fourth Proportional to 236,643.46, 326,568.38 and 129,211.20

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Solution

The fourth proportional to 236,643.46, 326,568.38 and 129,211.20 is: 178,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,643.46 : 326,568.38 = 129,211.20 : x
  2. Step 2: Convert to fraction form
    236,643.46/326,568.38 = 129,211.20/x
  3. Step 3: Cross multiply
    236,643.46x = 326,568.38 × 129,211.20
  4. Step 4: Simplify right side
    236,643.46x = 42,196,291,615.80
  5. Step 5: Solve for x
    x = 42,196,291,615.80/236,643.46
  6. Step 6: Final answer
    x = 178,311.68

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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.