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Finding the Fourth Proportional to 115,091.64, 158,815.08 and 84,893.22

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Solution

The fourth proportional to 115,091.64, 158,815.08 and 84,893.22 is: 117,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,091.64 : 158,815.08 = 84,893.22 : x
  2. Step 2: Convert to fraction form
    115,091.64/158,815.08 = 84,893.22/x
  3. Step 3: Cross multiply
    115,091.64x = 158,815.08 × 84,893.22
  4. Step 4: Simplify right side
    115,091.64x = 13,482,323,525.76
  5. Step 5: Solve for x
    x = 13,482,323,525.76/115,091.64
  6. Step 6: Final answer
    x = 117,144.25

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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.