Home / 158,583.12-218,844.48-91,515.12

Finding the Fourth Proportional to 158,583.12, 218,844.48 and 91,515.12

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Solution

The fourth proportional to 158,583.12, 218,844.48 and 91,515.12 is: 126,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,583.12 : 218,844.48 = 91,515.12 : x
  2. Step 2: Convert to fraction form
    158,583.12/218,844.48 = 91,515.12/x
  3. Step 3: Cross multiply
    158,583.12x = 218,844.48 × 91,515.12
  4. Step 4: Simplify right side
    158,583.12x = 20,027,578,848.54
  5. Step 5: Solve for x
    x = 20,027,578,848.54/158,583.12
  6. Step 6: Final answer
    x = 126,290.74

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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.