Home / 212,143.72-292,674.83-121,450.80

Finding the Fourth Proportional to 212,143.72, 292,674.83 and 121,450.80

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Solution

The fourth proportional to 212,143.72, 292,674.83 and 121,450.80 is: 167,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,143.72 : 292,674.83 = 121,450.80 : x
  2. Step 2: Convert to fraction form
    212,143.72/292,674.83 = 121,450.80/x
  3. Step 3: Cross multiply
    212,143.72x = 292,674.83 × 121,450.80
  4. Step 4: Simplify right side
    212,143.72x = 35,545,592,243.36
  5. Step 5: Solve for x
    x = 35,545,592,243.36/212,143.72
  6. Step 6: Final answer
    x = 167,554.30

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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.