Home / 105,378.32-158,093.40-74,274.32

Finding the Fourth Proportional to 105,378.32, 158,093.40 and 74,274.32

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Solution

The fourth proportional to 105,378.32, 158,093.40 and 74,274.32 is: 111,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,378.32 : 158,093.40 = 74,274.32 : x
  2. Step 2: Convert to fraction form
    105,378.32/158,093.40 = 74,274.32/x
  3. Step 3: Cross multiply
    105,378.32x = 158,093.40 × 74,274.32
  4. Step 4: Simplify right side
    105,378.32x = 11,742,279,781.49
  5. Step 5: Solve for x
    x = 11,742,279,781.49/105,378.32
  6. Step 6: Final answer
    x = 111,429.75

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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.