Home / 212,222.25-292,908.32-121,638.93

Finding the Fourth Proportional to 212,222.25, 292,908.32 and 121,638.93

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Solution

The fourth proportional to 212,222.25, 292,908.32 and 121,638.93 is: 167,885.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,222.25 : 292,908.32 = 121,638.93 : x
  2. Step 2: Convert to fraction form
    212,222.25/292,908.32 = 121,638.93/x
  3. Step 3: Cross multiply
    212,222.25x = 292,908.32 × 121,638.93
  4. Step 4: Simplify right side
    212,222.25x = 35,629,054,024.70
  5. Step 5: Solve for x
    x = 35,629,054,024.70/212,222.25
  6. Step 6: Final answer
    x = 167,885.57

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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.