Home / 124,511.60-186,767.40-85,145.60

Finding the Fourth Proportional to 124,511.60, 186,767.40 and 85,145.60

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Solution

The fourth proportional to 124,511.60, 186,767.40 and 85,145.60 is: 127,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,511.60 : 186,767.40 = 85,145.60 : x
  2. Step 2: Convert to fraction form
    124,511.60/186,767.40 = 85,145.60/x
  3. Step 3: Cross multiply
    124,511.60x = 186,767.40 × 85,145.60
  4. Step 4: Simplify right side
    124,511.60x = 15,902,422,333.44
  5. Step 5: Solve for x
    x = 15,902,422,333.44/124,511.60
  6. Step 6: Final answer
    x = 127,718.40

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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.