Home / 94,725.72-142,236-90,518.58

Finding the Fourth Proportional to 94,725.72, 142,236 and 90,518.58

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Solution

The fourth proportional to 94,725.72, 142,236 and 90,518.58 is: 135,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,725.72 : 142,236 = 90,518.58 : x
  2. Step 2: Convert to fraction form
    94,725.72/142,236 = 90,518.58/x
  3. Step 3: Cross multiply
    94,725.72x = 142,236 × 90,518.58
  4. Step 4: Simplify right side
    94,725.72x = 12,875,000,744.88
  5. Step 5: Solve for x
    x = 12,875,000,744.88/94,725.72
  6. Step 6: Final answer
    x = 135,918.74

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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.