Home / 149,547.21-206,393.73-85,883.64

Finding the Fourth Proportional to 149,547.21, 206,393.73 and 85,883.64

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Solution

The fourth proportional to 149,547.21, 206,393.73 and 85,883.64 is: 118,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,547.21 : 206,393.73 = 85,883.64 : x
  2. Step 2: Convert to fraction form
    149,547.21/206,393.73 = 85,883.64/x
  3. Step 3: Cross multiply
    149,547.21x = 206,393.73 × 85,883.64
  4. Step 4: Simplify right side
    149,547.21x = 17,725,844,805.58
  5. Step 5: Solve for x
    x = 17,725,844,805.58/149,547.21
  6. Step 6: Final answer
    x = 118,530.09

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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.