Home / 140,168.89-193,430.01-76,507.75

Finding the Fourth Proportional to 140,168.89, 193,430.01 and 76,507.75

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Solution

The fourth proportional to 140,168.89, 193,430.01 and 76,507.75 is: 105,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,168.89 : 193,430.01 = 76,507.75 : x
  2. Step 2: Convert to fraction form
    140,168.89/193,430.01 = 76,507.75/x
  3. Step 3: Cross multiply
    140,168.89x = 193,430.01 × 76,507.75
  4. Step 4: Simplify right side
    140,168.89x = 14,798,894,847.58
  5. Step 5: Solve for x
    x = 14,798,894,847.58/140,168.89
  6. Step 6: Final answer
    x = 105,579.03

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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.