Home / 200,317.02-276,624.81-128,821.16

Finding the Fourth Proportional to 200,317.02, 276,624.81 and 128,821.16

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Solution

The fourth proportional to 200,317.02, 276,624.81 and 128,821.16 is: 177,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,317.02 : 276,624.81 = 128,821.16 : x
  2. Step 2: Convert to fraction form
    200,317.02/276,624.81 = 128,821.16/x
  3. Step 3: Cross multiply
    200,317.02x = 276,624.81 × 128,821.16
  4. Step 4: Simplify right side
    200,317.02x = 35,635,127,525.86
  5. Step 5: Solve for x
    x = 35,635,127,525.86/200,317.02
  6. Step 6: Final answer
    x = 177,893.66

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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.