Home / 172,029.02-237,401.55-100,395.05

Finding the Fourth Proportional to 172,029.02, 237,401.55 and 100,395.05

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Solution

The fourth proportional to 172,029.02, 237,401.55 and 100,395.05 is: 138,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,029.02 : 237,401.55 = 100,395.05 : x
  2. Step 2: Convert to fraction form
    172,029.02/237,401.55 = 100,395.05/x
  3. Step 3: Cross multiply
    172,029.02x = 237,401.55 × 100,395.05
  4. Step 4: Simplify right side
    172,029.02x = 23,833,939,295.32
  5. Step 5: Solve for x
    x = 23,833,939,295.32/172,029.02
  6. Step 6: Final answer
    x = 138,546.04

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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.