Home / 212,063.07-292,647.63-121,420.43

Finding the Fourth Proportional to 212,063.07, 292,647.63 and 121,420.43

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Solution

The fourth proportional to 212,063.07, 292,647.63 and 121,420.43 is: 167,560.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,063.07 : 292,647.63 = 121,420.43 : x
  2. Step 2: Convert to fraction form
    212,063.07/292,647.63 = 121,420.43/x
  3. Step 3: Cross multiply
    212,063.07x = 292,647.63 × 121,420.43
  4. Step 4: Simplify right side
    212,063.07x = 35,533,399,609.84
  5. Step 5: Solve for x
    x = 35,533,399,609.84/212,063.07
  6. Step 6: Final answer
    x = 167,560.53

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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.