Home / 144,631.64-217,100.82-128,099

Finding the Fourth Proportional to 144,631.64, 217,100.82 and 128,099

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Solution

The fourth proportional to 144,631.64, 217,100.82 and 128,099 is: 192,284.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,631.64 : 217,100.82 = 128,099 : x
  2. Step 2: Convert to fraction form
    144,631.64/217,100.82 = 128,099/x
  3. Step 3: Cross multiply
    144,631.64x = 217,100.82 × 128,099
  4. Step 4: Simplify right side
    144,631.64x = 27,810,397,941.18
  5. Step 5: Solve for x
    x = 27,810,397,941.18/144,631.64
  6. Step 6: Final answer
    x = 192,284.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.