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Finding the Fourth Proportional to 140,453.66, 210,733.70 and 84,332.97

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Solution

The fourth proportional to 140,453.66, 210,733.70 and 84,332.97 is: 126,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,453.66 : 210,733.70 = 84,332.97 : x
  2. Step 2: Convert to fraction form
    140,453.66/210,733.70 = 84,332.97/x
  3. Step 3: Cross multiply
    140,453.66x = 210,733.70 × 84,332.97
  4. Step 4: Simplify right side
    140,453.66x = 17,771,798,378.42
  5. Step 5: Solve for x
    x = 17,771,798,378.42/140,453.66
  6. Step 6: Final answer
    x = 126,531.40

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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.