Home / 158,346.66-218,515.80-90,384.72

Finding the Fourth Proportional to 158,346.66, 218,515.80 and 90,384.72

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Solution

The fourth proportional to 158,346.66, 218,515.80 and 90,384.72 is: 124,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,346.66 : 218,515.80 = 90,384.72 : x
  2. Step 2: Convert to fraction form
    158,346.66/218,515.80 = 90,384.72/x
  3. Step 3: Cross multiply
    158,346.66x = 218,515.80 × 90,384.72
  4. Step 4: Simplify right side
    158,346.66x = 19,750,489,398.58
  5. Step 5: Solve for x
    x = 19,750,489,398.58/158,346.66
  6. Step 6: Final answer
    x = 124,729.43

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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.