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Finding the Fourth Proportional to 144,627.64, 217,094.82 and 128,095

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Solution

The fourth proportional to 144,627.64, 217,094.82 and 128,095 is: 192,278.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,627.64 : 217,094.82 = 128,095 : x
  2. Step 2: Convert to fraction form
    144,627.64/217,094.82 = 128,095/x
  3. Step 3: Cross multiply
    144,627.64x = 217,094.82 × 128,095
  4. Step 4: Simplify right side
    144,627.64x = 27,808,760,967.90
  5. Step 5: Solve for x
    x = 27,808,760,967.90/144,627.64
  6. Step 6: Final answer
    x = 192,278.33

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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.