Home / 158,972.32-238,458-40,643.68

Finding the Fourth Proportional to 158,972.32, 238,458 and 40,643.68

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Solution

The fourth proportional to 158,972.32, 238,458 and 40,643.68 is: 60,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,972.32 : 238,458 = 40,643.68 : x
  2. Step 2: Convert to fraction form
    158,972.32/238,458 = 40,643.68/x
  3. Step 3: Cross multiply
    158,972.32x = 238,458 × 40,643.68
  4. Step 4: Simplify right side
    158,972.32x = 9,691,810,645.44
  5. Step 5: Solve for x
    x = 9,691,810,645.44/158,972.32
  6. Step 6: Final answer
    x = 60,965.40

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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.