Home / 123,741.40-170,499.35-83,385.07

Finding the Fourth Proportional to 123,741.40, 170,499.35 and 83,385.07

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Solution

The fourth proportional to 123,741.40, 170,499.35 and 83,385.07 is: 114,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,741.40 : 170,499.35 = 83,385.07 : x
  2. Step 2: Convert to fraction form
    123,741.40/170,499.35 = 83,385.07/x
  3. Step 3: Cross multiply
    123,741.40x = 170,499.35 × 83,385.07
  4. Step 4: Simplify right side
    123,741.40x = 14,217,100,234.70
  5. Step 5: Solve for x
    x = 14,217,100,234.70/123,741.40
  6. Step 6: Final answer
    x = 114,893.64

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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.