Home / 109,868.14-151,621.02-62,128.63

Finding the Fourth Proportional to 109,868.14, 151,621.02 and 62,128.63

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Solution

The fourth proportional to 109,868.14, 151,621.02 and 62,128.63 is: 85,739.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,868.14 : 151,621.02 = 62,128.63 : x
  2. Step 2: Convert to fraction form
    109,868.14/151,621.02 = 62,128.63/x
  3. Step 3: Cross multiply
    109,868.14x = 151,621.02 × 62,128.63
  4. Step 4: Simplify right side
    109,868.14x = 9,420,005,183.05
  5. Step 5: Solve for x
    x = 9,420,005,183.05/109,868.14
  6. Step 6: Final answer
    x = 85,739.19

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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.