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Finding the Fourth Proportional to 135,486.66, 186,983.06 and 75,076.24

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Solution

The fourth proportional to 135,486.66, 186,983.06 and 75,076.24 is: 103,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,486.66 : 186,983.06 = 75,076.24 : x
  2. Step 2: Convert to fraction form
    135,486.66/186,983.06 = 75,076.24/x
  3. Step 3: Cross multiply
    135,486.66x = 186,983.06 × 75,076.24
  4. Step 4: Simplify right side
    135,486.66x = 14,037,985,088.49
  5. Step 5: Solve for x
    x = 14,037,985,088.49/135,486.66
  6. Step 6: Final answer
    x = 103,611.57

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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.