Home / 168,128.36-232,018.92-100,146.32

Finding the Fourth Proportional to 168,128.36, 232,018.92 and 100,146.32

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Solution

The fourth proportional to 168,128.36, 232,018.92 and 100,146.32 is: 138,202.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,128.36 : 232,018.92 = 100,146.32 : x
  2. Step 2: Convert to fraction form
    168,128.36/232,018.92 = 100,146.32/x
  3. Step 3: Cross multiply
    168,128.36x = 232,018.92 × 100,146.32
  4. Step 4: Simplify right side
    168,128.36x = 23,235,841,008.37
  5. Step 5: Solve for x
    x = 23,235,841,008.37/168,128.36
  6. Step 6: Final answer
    x = 138,202.98

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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.