Home / 140,100.22-193,338.93-76,439.35

Finding the Fourth Proportional to 140,100.22, 193,338.93 and 76,439.35

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Solution

The fourth proportional to 140,100.22, 193,338.93 and 76,439.35 is: 105,486.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,100.22 : 193,338.93 = 76,439.35 : x
  2. Step 2: Convert to fraction form
    140,100.22/193,338.93 = 76,439.35/x
  3. Step 3: Cross multiply
    140,100.22x = 193,338.93 × 76,439.35
  4. Step 4: Simplify right side
    140,100.22x = 14,778,702,138.90
  5. Step 5: Solve for x
    x = 14,778,702,138.90/140,100.22
  6. Step 6: Final answer
    x = 105,486.64

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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.