Home / 145,708.88-201,078.25-82,045.31

Finding the Fourth Proportional to 145,708.88, 201,078.25 and 82,045.31

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Solution

The fourth proportional to 145,708.88, 201,078.25 and 82,045.31 is: 113,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,708.88 : 201,078.25 = 82,045.31 : x
  2. Step 2: Convert to fraction form
    145,708.88/201,078.25 = 82,045.31/x
  3. Step 3: Cross multiply
    145,708.88x = 201,078.25 × 82,045.31
  4. Step 4: Simplify right side
    145,708.88x = 16,497,526,145.00
  5. Step 5: Solve for x
    x = 16,497,526,145.00/145,708.88
  6. Step 6: Final answer
    x = 113,222.52

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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.