Home / 171,628.10-257,365.35-66,412.10

Finding the Fourth Proportional to 171,628.10, 257,365.35 and 66,412.10

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Solution

The fourth proportional to 171,628.10, 257,365.35 and 66,412.10 is: 99,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,628.10 : 257,365.35 = 66,412.10 : x
  2. Step 2: Convert to fraction form
    171,628.10/257,365.35 = 66,412.10/x
  3. Step 3: Cross multiply
    171,628.10x = 257,365.35 × 66,412.10
  4. Step 4: Simplify right side
    171,628.10x = 17,092,173,360.74
  5. Step 5: Solve for x
    x = 17,092,173,360.74/171,628.10
  6. Step 6: Final answer
    x = 99,588.43

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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.