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Finding the Fourth Proportional to 101,476.25, 140,035.13 and 56,154.20

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Solution

The fourth proportional to 101,476.25, 140,035.13 and 56,154.20 is: 77,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,476.25 : 140,035.13 = 56,154.20 : x
  2. Step 2: Convert to fraction form
    101,476.25/140,035.13 = 56,154.20/x
  3. Step 3: Cross multiply
    101,476.25x = 140,035.13 × 56,154.20
  4. Step 4: Simplify right side
    101,476.25x = 7,863,560,416.28
  5. Step 5: Solve for x
    x = 7,863,560,416.28/101,476.25
  6. Step 6: Final answer
    x = 77,491.63

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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.