Home / 131,168.69-196,759.19-42,429.12

Finding the Fourth Proportional to 131,168.69, 196,759.19 and 42,429.12

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Solution

The fourth proportional to 131,168.69, 196,759.19 and 42,429.12 is: 63,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,168.69 : 196,759.19 = 42,429.12 : x
  2. Step 2: Convert to fraction form
    131,168.69/196,759.19 = 42,429.12/x
  3. Step 3: Cross multiply
    131,168.69x = 196,759.19 × 42,429.12
  4. Step 4: Simplify right side
    131,168.69x = 8,348,319,283.61
  5. Step 5: Solve for x
    x = 8,348,319,283.61/131,168.69
  6. Step 6: Final answer
    x = 63,645.67

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1.5x scale

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.