Home / 216,600.16-298,907.40-121,106.56

Finding the Fourth Proportional to 216,600.16, 298,907.40 and 121,106.56

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Solution

The fourth proportional to 216,600.16, 298,907.40 and 121,106.56 is: 167,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,600.16 : 298,907.40 = 121,106.56 : x
  2. Step 2: Convert to fraction form
    216,600.16/298,907.40 = 121,106.56/x
  3. Step 3: Cross multiply
    216,600.16x = 298,907.40 × 121,106.56
  4. Step 4: Simplify right side
    216,600.16x = 36,199,646,972.54
  5. Step 5: Solve for x
    x = 36,199,646,972.54/216,600.16
  6. Step 6: Final answer
    x = 167,126.59

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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.