Home / 190,936.60-263,421-118,306.34

Finding the Fourth Proportional to 190,936.60, 263,421 and 118,306.34

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Solution

The fourth proportional to 190,936.60, 263,421 and 118,306.34 is: 163,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,936.60 : 263,421 = 118,306.34 : x
  2. Step 2: Convert to fraction form
    190,936.60/263,421 = 118,306.34/x
  3. Step 3: Cross multiply
    190,936.60x = 263,421 × 118,306.34
  4. Step 4: Simplify right side
    190,936.60x = 31,164,374,389.14
  5. Step 5: Solve for x
    x = 31,164,374,389.14/190,936.60
  6. Step 6: Final answer
    x = 163,218.44

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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.