Home / 145,933.91-201,386.12-82,271.78

Finding the Fourth Proportional to 145,933.91, 201,386.12 and 82,271.78

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Solution

The fourth proportional to 145,933.91, 201,386.12 and 82,271.78 is: 113,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,933.91 : 201,386.12 = 82,271.78 : x
  2. Step 2: Convert to fraction form
    145,933.91/201,386.12 = 82,271.78/x
  3. Step 3: Cross multiply
    145,933.91x = 201,386.12 × 82,271.78
  4. Step 4: Simplify right side
    145,933.91x = 16,568,393,141.40
  5. Step 5: Solve for x
    x = 16,568,393,141.40/145,933.91
  6. Step 6: Final answer
    x = 113,533.54

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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.