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Finding the Fourth Proportional to 159,878.81, 220,634.55 and 88,258.88

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Solution

The fourth proportional to 159,878.81, 220,634.55 and 88,258.88 is: 121,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,878.81 : 220,634.55 = 88,258.88 : x
  2. Step 2: Convert to fraction form
    159,878.81/220,634.55 = 88,258.88/x
  3. Step 3: Cross multiply
    159,878.81x = 220,634.55 × 88,258.88
  4. Step 4: Simplify right side
    159,878.81x = 19,472,958,823.89
  5. Step 5: Solve for x
    x = 19,472,958,823.89/159,878.81
  6. Step 6: Final answer
    x = 121,798.25

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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.