Home / 141,141.23-194,775.59-77,479.03

Finding the Fourth Proportional to 141,141.23, 194,775.59 and 77,479.03

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Solution

The fourth proportional to 141,141.23, 194,775.59 and 77,479.03 is: 106,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,141.23 : 194,775.59 = 77,479.03 : x
  2. Step 2: Convert to fraction form
    141,141.23/194,775.59 = 77,479.03/x
  3. Step 3: Cross multiply
    141,141.23x = 194,775.59 × 77,479.03
  4. Step 4: Simplify right side
    141,141.23x = 15,091,023,782.23
  5. Step 5: Solve for x
    x = 15,091,023,782.23/141,141.23
  6. Step 6: Final answer
    x = 106,921.44

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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.