Home / 236,853.10-326,856.63-129,423.88

Finding the Fourth Proportional to 236,853.10, 326,856.63 and 129,423.88

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Solution

The fourth proportional to 236,853.10, 326,856.63 and 129,423.88 is: 178,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,853.10 : 326,856.63 = 129,423.88 : x
  2. Step 2: Convert to fraction form
    236,853.10/326,856.63 = 129,423.88/x
  3. Step 3: Cross multiply
    236,853.10x = 326,856.63 × 129,423.88
  4. Step 4: Simplify right side
    236,853.10x = 42,303,053,258.32
  5. Step 5: Solve for x
    x = 42,303,053,258.32/236,853.10
  6. Step 6: Final answer
    x = 178,604.60

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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.