Home / 158,878.87-219,258.09-90,895.97

Finding the Fourth Proportional to 158,878.87, 219,258.09 and 90,895.97

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Solution

The fourth proportional to 158,878.87, 219,258.09 and 90,895.97 is: 125,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,878.87 : 219,258.09 = 90,895.97 : x
  2. Step 2: Convert to fraction form
    158,878.87/219,258.09 = 90,895.97/x
  3. Step 3: Cross multiply
    158,878.87x = 219,258.09 × 90,895.97
  4. Step 4: Simplify right side
    158,878.87x = 19,929,677,319.04
  5. Step 5: Solve for x
    x = 19,929,677,319.04/158,878.87
  6. Step 6: Final answer
    x = 125,439.45

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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.