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Finding the Fourth Proportional to 180,190.15, 248,661.01 and 99,621.07

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Solution

The fourth proportional to 180,190.15, 248,661.01 and 99,621.07 is: 137,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,190.15 : 248,661.01 = 99,621.07 : x
  2. Step 2: Convert to fraction form
    180,190.15/248,661.01 = 99,621.07/x
  3. Step 3: Cross multiply
    180,190.15x = 248,661.01 × 99,621.07
  4. Step 4: Simplify right side
    180,190.15x = 24,771,875,883.48
  5. Step 5: Solve for x
    x = 24,771,875,883.48/180,190.15
  6. Step 6: Final answer
    x = 137,476.30

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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.