Home / 185,172.02-255,537.74-100,289.10

Finding the Fourth Proportional to 185,172.02, 255,537.74 and 100,289.10

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Solution

The fourth proportional to 185,172.02, 255,537.74 and 100,289.10 is: 138,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,172.02 : 255,537.74 = 100,289.10 : x
  2. Step 2: Convert to fraction form
    185,172.02/255,537.74 = 100,289.10/x
  3. Step 3: Cross multiply
    185,172.02x = 255,537.74 × 100,289.10
  4. Step 4: Simplify right side
    185,172.02x = 25,627,649,960.63
  5. Step 5: Solve for x
    x = 25,627,649,960.63/185,172.02
  6. Step 6: Final answer
    x = 138,399.15

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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.