Home / 140,334.36-193,659.15-76,670.79

Finding the Fourth Proportional to 140,334.36, 193,659.15 and 76,670.79

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Solution

The fourth proportional to 140,334.36, 193,659.15 and 76,670.79 is: 105,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,334.36 : 193,659.15 = 76,670.79 : x
  2. Step 2: Convert to fraction form
    140,334.36/193,659.15 = 76,670.79/x
  3. Step 3: Cross multiply
    140,334.36x = 193,659.15 × 76,670.79
  4. Step 4: Simplify right side
    140,334.36x = 14,848,000,021.23
  5. Step 5: Solve for x
    x = 14,848,000,021.23/140,334.36
  6. Step 6: Final answer
    x = 105,804.45

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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.