Home / 103,535.32-155,380.14-76,942.60

Finding the Fourth Proportional to 103,535.32, 155,380.14 and 76,942.60

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Solution

The fourth proportional to 103,535.32, 155,380.14 and 76,942.60 is: 115,471.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,535.32 : 155,380.14 = 76,942.60 : x
  2. Step 2: Convert to fraction form
    103,535.32/155,380.14 = 76,942.60/x
  3. Step 3: Cross multiply
    103,535.32x = 155,380.14 × 76,942.60
  4. Step 4: Simplify right side
    103,535.32x = 11,955,351,959.96
  5. Step 5: Solve for x
    x = 11,955,351,959.96/103,535.32
  6. Step 6: Final answer
    x = 115,471.24

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1.5x scale

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.