Home / 100,728.15-151,075.79-29,634.16

Finding the Fourth Proportional to 100,728.15, 151,075.79 and 29,634.16

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Solution

The fourth proportional to 100,728.15, 151,075.79 and 29,634.16 is: 44,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,728.15 : 151,075.79 = 29,634.16 : x
  2. Step 2: Convert to fraction form
    100,728.15/151,075.79 = 29,634.16/x
  3. Step 3: Cross multiply
    100,728.15x = 151,075.79 × 29,634.16
  4. Step 4: Simplify right side
    100,728.15x = 4,477,004,132.99
  5. Step 5: Solve for x
    x = 4,477,004,132.99/100,728.15
  6. Step 6: Final answer
    x = 44,446.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.