Home / 212,745.42-293,535.63-135,192.78

Finding the Fourth Proportional to 212,745.42, 293,535.63 and 135,192.78

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Solution

The fourth proportional to 212,745.42, 293,535.63 and 135,192.78 is: 186,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,745.42 : 293,535.63 = 135,192.78 : x
  2. Step 2: Convert to fraction form
    212,745.42/293,535.63 = 135,192.78/x
  3. Step 3: Cross multiply
    212,745.42x = 293,535.63 × 135,192.78
  4. Step 4: Simplify right side
    212,745.42x = 39,683,897,848.75
  5. Step 5: Solve for x
    x = 39,683,897,848.75/212,745.42
  6. Step 6: Final answer
    x = 186,532.33

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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.