Home / 185,012.16-255,143.44-122,812.60

Finding the Fourth Proportional to 185,012.16, 255,143.44 and 122,812.60

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Solution

The fourth proportional to 185,012.16, 255,143.44 and 122,812.60 is: 169,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,012.16 : 255,143.44 = 122,812.60 : x
  2. Step 2: Convert to fraction form
    185,012.16/255,143.44 = 122,812.60/x
  3. Step 3: Cross multiply
    185,012.16x = 255,143.44 × 122,812.60
  4. Step 4: Simplify right side
    185,012.16x = 31,334,829,239.34
  5. Step 5: Solve for x
    x = 31,334,829,239.34/185,012.16
  6. Step 6: Final answer
    x = 169,366.32

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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.