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Finding the Fourth Proportional to 102,073.88, 140,859.42 and 57,364.76

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Solution

The fourth proportional to 102,073.88, 140,859.42 and 57,364.76 is: 79,161.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,073.88 : 140,859.42 = 57,364.76 : x
  2. Step 2: Convert to fraction form
    102,073.88/140,859.42 = 57,364.76/x
  3. Step 3: Cross multiply
    102,073.88x = 140,859.42 × 57,364.76
  4. Step 4: Simplify right side
    102,073.88x = 8,080,366,822.04
  5. Step 5: Solve for x
    x = 8,080,366,822.04/102,073.88
  6. Step 6: Final answer
    x = 79,161.94

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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.