Home / 212,012.25-292,559.76-121,347.60

Finding the Fourth Proportional to 212,012.25, 292,559.76 and 121,347.60

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Solution

The fourth proportional to 212,012.25, 292,559.76 and 121,347.60 is: 167,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,012.25 : 292,559.76 = 121,347.60 : x
  2. Step 2: Convert to fraction form
    212,012.25/292,559.76 = 121,347.60/x
  3. Step 3: Cross multiply
    212,012.25x = 292,559.76 × 121,347.60
  4. Step 4: Simplify right side
    212,012.25x = 35,501,424,732.58
  5. Step 5: Solve for x
    x = 35,501,424,732.58/212,012.25
  6. Step 6: Final answer
    x = 167,449.87

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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.