Home / 123,533.40-185,300.10-40,435.80

Finding the Fourth Proportional to 123,533.40, 185,300.10 and 40,435.80

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Solution

The fourth proportional to 123,533.40, 185,300.10 and 40,435.80 is: 60,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,533.40 : 185,300.10 = 40,435.80 : x
  2. Step 2: Convert to fraction form
    123,533.40/185,300.10 = 40,435.80/x
  3. Step 3: Cross multiply
    123,533.40x = 185,300.10 × 40,435.80
  4. Step 4: Simplify right side
    123,533.40x = 7,492,757,783.58
  5. Step 5: Solve for x
    x = 7,492,757,783.58/123,533.40
  6. Step 6: Final answer
    x = 60,653.70

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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.