Home / 158,336.42-218,450.01-90,304.47

Finding the Fourth Proportional to 158,336.42, 218,450.01 and 90,304.47

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Solution

The fourth proportional to 158,336.42, 218,450.01 and 90,304.47 is: 124,589.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,336.42 : 218,450.01 = 90,304.47 : x
  2. Step 2: Convert to fraction form
    158,336.42/218,450.01 = 90,304.47/x
  3. Step 3: Cross multiply
    158,336.42x = 218,450.01 × 90,304.47
  4. Step 4: Simplify right side
    158,336.42x = 19,727,012,713.19
  5. Step 5: Solve for x
    x = 19,727,012,713.19/158,336.42
  6. Step 6: Final answer
    x = 124,589.23

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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.