Home / 171,519.40-257,570.70-127,196.20

Finding the Fourth Proportional to 171,519.40, 257,570.70 and 127,196.20

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Solution

The fourth proportional to 171,519.40, 257,570.70 and 127,196.20 is: 191,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,519.40 : 257,570.70 = 127,196.20 : x
  2. Step 2: Convert to fraction form
    171,519.40/257,570.70 = 127,196.20/x
  3. Step 3: Cross multiply
    171,519.40x = 257,570.70 × 127,196.20
  4. Step 4: Simplify right side
    171,519.40x = 32,762,014,271.34
  5. Step 5: Solve for x
    x = 32,762,014,271.34/171,519.40
  6. Step 6: Final answer
    x = 191,010.55

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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.