Home / 158,634.80-218,885.74-90,673.32

Finding the Fourth Proportional to 158,634.80, 218,885.74 and 90,673.32

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Solution

The fourth proportional to 158,634.80, 218,885.74 and 90,673.32 is: 125,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,634.80 : 218,885.74 = 90,673.32 : x
  2. Step 2: Convert to fraction form
    158,634.80/218,885.74 = 90,673.32/x
  3. Step 3: Cross multiply
    158,634.80x = 218,885.74 × 90,673.32
  4. Step 4: Simplify right side
    158,634.80x = 19,847,096,519.77
  5. Step 5: Solve for x
    x = 19,847,096,519.77/158,634.80
  6. Step 6: Final answer
    x = 125,111.87

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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.