Home / 141,173.73-194,820.09-77,515.64

Finding the Fourth Proportional to 141,173.73, 194,820.09 and 77,515.64

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Solution

The fourth proportional to 141,173.73, 194,820.09 and 77,515.64 is: 106,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,173.73 : 194,820.09 = 77,515.64 : x
  2. Step 2: Convert to fraction form
    141,173.73/194,820.09 = 77,515.64/x
  3. Step 3: Cross multiply
    141,173.73x = 194,820.09 × 77,515.64
  4. Step 4: Simplify right side
    141,173.73x = 15,101,602,987.11
  5. Step 5: Solve for x
    x = 15,101,602,987.11/141,173.73
  6. Step 6: Final answer
    x = 106,971.76

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1.5x scale

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.