Home / 158,120.64-218,216.16-91,074.24

Finding the Fourth Proportional to 158,120.64, 218,216.16 and 91,074.24

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Solution

The fourth proportional to 158,120.64, 218,216.16 and 91,074.24 is: 125,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,120.64 : 218,216.16 = 91,074.24 : x
  2. Step 2: Convert to fraction form
    158,120.64/218,216.16 = 91,074.24/x
  3. Step 3: Cross multiply
    158,120.64x = 218,216.16 × 91,074.24
  4. Step 4: Simplify right side
    158,120.64x = 19,873,870,927.72
  5. Step 5: Solve for x
    x = 19,873,870,927.72/158,120.64
  6. Step 6: Final answer
    x = 125,688.02

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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.