Home / 100,782.04-151,129.32-30,644.92

Finding the Fourth Proportional to 100,782.04, 151,129.32 and 30,644.92

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Solution

The fourth proportional to 100,782.04, 151,129.32 and 30,644.92 is: 45,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,782.04 : 151,129.32 = 30,644.92 : x
  2. Step 2: Convert to fraction form
    100,782.04/151,129.32 = 30,644.92/x
  3. Step 3: Cross multiply
    100,782.04x = 151,129.32 × 30,644.92
  4. Step 4: Simplify right side
    100,782.04x = 4,631,345,921.05
  5. Step 5: Solve for x
    x = 4,631,345,921.05/100,782.04
  6. Step 6: Final answer
    x = 45,954.08

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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.