Home / 171,429.40-257,435.70-127,106.20

Finding the Fourth Proportional to 171,429.40, 257,435.70 and 127,106.20

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Solution

The fourth proportional to 171,429.40, 257,435.70 and 127,106.20 is: 190,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,429.40 : 257,435.70 = 127,106.20 : x
  2. Step 2: Convert to fraction form
    171,429.40/257,435.70 = 127,106.20/x
  3. Step 3: Cross multiply
    171,429.40x = 257,435.70 × 127,106.20
  4. Step 4: Simplify right side
    171,429.40x = 32,721,673,571.34
  5. Step 5: Solve for x
    x = 32,721,673,571.34/171,429.40
  6. Step 6: Final answer
    x = 190,875.51

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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.