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Finding the Fourth Proportional to 160,065.12, 220,878.72 and 88,443.84

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Solution

The fourth proportional to 160,065.12, 220,878.72 and 88,443.84 is: 122,046.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,065.12 : 220,878.72 = 88,443.84 : x
  2. Step 2: Convert to fraction form
    160,065.12/220,878.72 = 88,443.84/x
  3. Step 3: Cross multiply
    160,065.12x = 220,878.72 × 88,443.84
  4. Step 4: Simplify right side
    160,065.12x = 19,535,362,171.08
  5. Step 5: Solve for x
    x = 19,535,362,171.08/160,065.12
  6. Step 6: Final answer
    x = 122,046.34

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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.