Home / 219,713.60-329,570.40-126,401.60

Finding the Fourth Proportional to 219,713.60, 329,570.40 and 126,401.60

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Solution

The fourth proportional to 219,713.60, 329,570.40 and 126,401.60 is: 189,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,713.60 : 329,570.40 = 126,401.60 : x
  2. Step 2: Convert to fraction form
    219,713.60/329,570.40 = 126,401.60/x
  3. Step 3: Cross multiply
    219,713.60x = 329,570.40 × 126,401.60
  4. Step 4: Simplify right side
    219,713.60x = 41,658,225,872.64
  5. Step 5: Solve for x
    x = 41,658,225,872.64/219,713.60
  6. Step 6: Final answer
    x = 189,602.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.