Home / 180,243.20-248,725.52-99,665.84

Finding the Fourth Proportional to 180,243.20, 248,725.52 and 99,665.84

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Solution

The fourth proportional to 180,243.20, 248,725.52 and 99,665.84 is: 137,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,243.20 : 248,725.52 = 99,665.84 : x
  2. Step 2: Convert to fraction form
    180,243.20/248,725.52 = 99,665.84/x
  3. Step 3: Cross multiply
    180,243.20x = 248,725.52 × 99,665.84
  4. Step 4: Simplify right side
    180,243.20x = 24,789,437,880.24
  5. Step 5: Solve for x
    x = 24,789,437,880.24/180,243.20
  6. Step 6: Final answer
    x = 137,533.28

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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.