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Finding the Fourth Proportional to 140,507.70, 210,719.07 and 73,911.12

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Solution

The fourth proportional to 140,507.70, 210,719.07 and 73,911.12 is: 110,844.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,507.70 : 210,719.07 = 73,911.12 : x
  2. Step 2: Convert to fraction form
    140,507.70/210,719.07 = 73,911.12/x
  3. Step 3: Cross multiply
    140,507.70x = 210,719.07 × 73,911.12
  4. Step 4: Simplify right side
    140,507.70x = 15,574,482,469.06
  5. Step 5: Solve for x
    x = 15,574,482,469.06/140,507.70
  6. Step 6: Final answer
    x = 110,844.33

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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.