Home / 185,075.61-255,404.91-100,192.47

Finding the Fourth Proportional to 185,075.61, 255,404.91 and 100,192.47

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Solution

The fourth proportional to 185,075.61, 255,404.91 and 100,192.47 is: 138,265.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,075.61 : 255,404.91 = 100,192.47 : x
  2. Step 2: Convert to fraction form
    185,075.61/255,404.91 = 100,192.47/x
  3. Step 3: Cross multiply
    185,075.61x = 255,404.91 × 100,192.47
  4. Step 4: Simplify right side
    185,075.61x = 25,589,648,783.03
  5. Step 5: Solve for x
    x = 25,589,648,783.03/185,075.61
  6. Step 6: Final answer
    x = 138,265.92

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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.