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Finding the Fourth Proportional to 141,779.21, 212,668.61 and 65,836.22

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Solution

The fourth proportional to 141,779.21, 212,668.61 and 65,836.22 is: 98,754.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,779.21 : 212,668.61 = 65,836.22 : x
  2. Step 2: Convert to fraction form
    141,779.21/212,668.61 = 65,836.22/x
  3. Step 3: Cross multiply
    141,779.21x = 212,668.61 × 65,836.22
  4. Step 4: Simplify right side
    141,779.21x = 14,001,297,213.82
  5. Step 5: Solve for x
    x = 14,001,297,213.82/141,779.21
  6. Step 6: Final answer
    x = 98,754.24

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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.