Home / 185,029.02-255,208.32-127,690.20

Finding the Fourth Proportional to 185,029.02, 255,208.32 and 127,690.20

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Solution

The fourth proportional to 185,029.02, 255,208.32 and 127,690.20 is: 176,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,029.02 : 255,208.32 = 127,690.20 : x
  2. Step 2: Convert to fraction form
    185,029.02/255,208.32 = 127,690.20/x
  3. Step 3: Cross multiply
    185,029.02x = 255,208.32 × 127,690.20
  4. Step 4: Simplify right side
    185,029.02x = 32,587,601,422.46
  5. Step 5: Solve for x
    x = 32,587,601,422.46/185,029.02
  6. Step 6: Final answer
    x = 176,121.57

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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.