Home / 137,896.02-190,369.08-92,811.06

Finding the Fourth Proportional to 137,896.02, 190,369.08 and 92,811.06

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Solution

The fourth proportional to 137,896.02, 190,369.08 and 92,811.06 is: 128,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,896.02 : 190,369.08 = 92,811.06 : x
  2. Step 2: Convert to fraction form
    137,896.02/190,369.08 = 92,811.06/x
  3. Step 3: Cross multiply
    137,896.02x = 190,369.08 × 92,811.06
  4. Step 4: Simplify right side
    137,896.02x = 17,668,356,106.02
  5. Step 5: Solve for x
    x = 17,668,356,106.02/137,896.02
  6. Step 6: Final answer
    x = 128,128.11

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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.