Home / 158,108.77-236,783.13-90,435.64

Finding the Fourth Proportional to 158,108.77, 236,783.13 and 90,435.64

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Solution

The fourth proportional to 158,108.77, 236,783.13 and 90,435.64 is: 135,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,108.77 : 236,783.13 = 90,435.64 : x
  2. Step 2: Convert to fraction form
    158,108.77/236,783.13 = 90,435.64/x
  3. Step 3: Cross multiply
    158,108.77x = 236,783.13 × 90,435.64
  4. Step 4: Simplify right side
    158,108.77x = 21,413,634,537.87
  5. Step 5: Solve for x
    x = 21,413,634,537.87/158,108.77
  6. Step 6: Final answer
    x = 135,436.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.