Home / 200,071.80-276,136.02-128,541.24

Finding the Fourth Proportional to 200,071.80, 276,136.02 and 128,541.24

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Solution

The fourth proportional to 200,071.80, 276,136.02 and 128,541.24 is: 177,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,071.80 : 276,136.02 = 128,541.24 : x
  2. Step 2: Convert to fraction form
    200,071.80/276,136.02 = 128,541.24/x
  3. Step 3: Cross multiply
    200,071.80x = 276,136.02 × 128,541.24
  4. Step 4: Simplify right side
    200,071.80x = 35,494,866,419.46
  5. Step 5: Solve for x
    x = 35,494,866,419.46/200,071.80
  6. Step 6: Final answer
    x = 177,410.64

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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.