Home / 92,142.12-138,206.58-35,971.74

Finding the Fourth Proportional to 92,142.12, 138,206.58 and 35,971.74

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Solution

The fourth proportional to 92,142.12, 138,206.58 and 35,971.74 is: 53,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,142.12 : 138,206.58 = 35,971.74 : x
  2. Step 2: Convert to fraction form
    92,142.12/138,206.58 = 35,971.74/x
  3. Step 3: Cross multiply
    92,142.12x = 138,206.58 × 35,971.74
  4. Step 4: Simplify right side
    92,142.12x = 4,971,531,162.05
  5. Step 5: Solve for x
    x = 4,971,531,162.05/92,142.12
  6. Step 6: Final answer
    x = 53,955.03

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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.