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Finding the Fourth Proportional to 112,300.59, 154,974.90 and 61,999.59

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Solution

The fourth proportional to 112,300.59, 154,974.90 and 61,999.59 is: 85,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,300.59 : 154,974.90 = 61,999.59 : x
  2. Step 2: Convert to fraction form
    112,300.59/154,974.90 = 61,999.59/x
  3. Step 3: Cross multiply
    112,300.59x = 154,974.90 × 61,999.59
  4. Step 4: Simplify right side
    112,300.59x = 9,608,380,260.29
  5. Step 5: Solve for x
    x = 9,608,380,260.29/112,300.59
  6. Step 6: Final answer
    x = 85,559.48

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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.