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Finding the Fourth Proportional to 140,323.35, 210,338.01 and 65,381.70

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Solution

The fourth proportional to 140,323.35, 210,338.01 and 65,381.70 is: 98,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,323.35 : 210,338.01 = 65,381.70 : x
  2. Step 2: Convert to fraction form
    140,323.35/210,338.01 = 65,381.70/x
  3. Step 3: Cross multiply
    140,323.35x = 210,338.01 × 65,381.70
  4. Step 4: Simplify right side
    140,323.35x = 13,752,256,668.42
  5. Step 5: Solve for x
    x = 13,752,256,668.42/140,323.35
  6. Step 6: Final answer
    x = 98,004.05

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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.