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Finding the Fourth Proportional to 159,858.64, 220,603.72 and 88,238.64

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Solution

The fourth proportional to 159,858.64, 220,603.72 and 88,238.64 is: 121,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,858.64 : 220,603.72 = 88,238.64 : x
  2. Step 2: Convert to fraction form
    159,858.64/220,603.72 = 88,238.64/x
  3. Step 3: Cross multiply
    159,858.64x = 220,603.72 × 88,238.64
  4. Step 4: Simplify right side
    159,858.64x = 19,465,772,231.74
  5. Step 5: Solve for x
    x = 19,465,772,231.74/159,858.64
  6. Step 6: Final answer
    x = 121,768.66

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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.