Home / 185,700.12-256,268.99-100,817.19

Finding the Fourth Proportional to 185,700.12, 256,268.99 and 100,817.19

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Solution

The fourth proportional to 185,700.12, 256,268.99 and 100,817.19 is: 139,129.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,700.12 : 256,268.99 = 100,817.19 : x
  2. Step 2: Convert to fraction form
    185,700.12/256,268.99 = 100,817.19/x
  3. Step 3: Cross multiply
    185,700.12x = 256,268.99 × 100,817.19
  4. Step 4: Simplify right side
    185,700.12x = 25,836,319,455.94
  5. Step 5: Solve for x
    x = 25,836,319,455.94/185,700.12
  6. Step 6: Final answer
    x = 139,129.26

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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.