Home / 212,074.50-292,656.57-121,427.46

Finding the Fourth Proportional to 212,074.50, 292,656.57 and 121,427.46

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Solution

The fourth proportional to 212,074.50, 292,656.57 and 121,427.46 is: 167,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,074.50 : 292,656.57 = 121,427.46 : x
  2. Step 2: Convert to fraction form
    212,074.50/292,656.57 = 121,427.46/x
  3. Step 3: Cross multiply
    212,074.50x = 292,656.57 × 121,427.46
  4. Step 4: Simplify right side
    212,074.50x = 35,536,543,947.41
  5. Step 5: Solve for x
    x = 35,536,543,947.41/212,074.50
  6. Step 6: Final answer
    x = 167,566.32

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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.