Home / 171,985.10-257,467.35-127,807.70

Finding the Fourth Proportional to 171,985.10, 257,467.35 and 127,807.70

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Solution

The fourth proportional to 171,985.10, 257,467.35 and 127,807.70 is: 191,332.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,985.10 : 257,467.35 = 127,807.70 : x
  2. Step 2: Convert to fraction form
    171,985.10/257,467.35 = 127,807.70/x
  3. Step 3: Cross multiply
    171,985.10x = 257,467.35 × 127,807.70
  4. Step 4: Simplify right side
    171,985.10x = 32,906,309,828.60
  5. Step 5: Solve for x
    x = 32,906,309,828.60/171,985.10
  6. Step 6: Final answer
    x = 191,332.33

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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.