Home / 185,075.10-255,403.71-100,192.19

Finding the Fourth Proportional to 185,075.10, 255,403.71 and 100,192.19

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Solution

The fourth proportional to 185,075.10, 255,403.71 and 100,192.19 is: 138,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,075.10 : 255,403.71 = 100,192.19 : x
  2. Step 2: Convert to fraction form
    185,075.10/255,403.71 = 100,192.19/x
  3. Step 3: Cross multiply
    185,075.10x = 255,403.71 × 100,192.19
  4. Step 4: Simplify right side
    185,075.10x = 25,589,455,762.01
  5. Step 5: Solve for x
    x = 25,589,455,762.01/185,075.10
  6. Step 6: Final answer
    x = 138,265.25

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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.