Home / 102,922.38-142,032.88-55,818.38

Finding the Fourth Proportional to 102,922.38, 142,032.88 and 55,818.38

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Solution

The fourth proportional to 102,922.38, 142,032.88 and 55,818.38 is: 77,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,922.38 : 142,032.88 = 55,818.38 : x
  2. Step 2: Convert to fraction form
    102,922.38/142,032.88 = 55,818.38/x
  3. Step 3: Cross multiply
    102,922.38x = 142,032.88 × 55,818.38
  4. Step 4: Simplify right side
    102,922.38x = 7,928,045,268.33
  5. Step 5: Solve for x
    x = 7,928,045,268.33/102,922.38
  6. Step 6: Final answer
    x = 77,029.36

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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.