Home / 141,718.40-212,391.48-66,736.88

Finding the Fourth Proportional to 141,718.40, 212,391.48 and 66,736.88

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Solution

The fourth proportional to 141,718.40, 212,391.48 and 66,736.88 is: 100,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,718.40 : 212,391.48 = 66,736.88 : x
  2. Step 2: Convert to fraction form
    141,718.40/212,391.48 = 66,736.88/x
  3. Step 3: Cross multiply
    141,718.40x = 212,391.48 × 66,736.88
  4. Step 4: Simplify right side
    141,718.40x = 14,174,344,713.78
  5. Step 5: Solve for x
    x = 14,174,344,713.78/141,718.40
  6. Step 6: Final answer
    x = 100,017.67

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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.