Home / 171,435.12-236,603.16-103,490.64

Finding the Fourth Proportional to 171,435.12, 236,603.16 and 103,490.64

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Solution

The fourth proportional to 171,435.12, 236,603.16 and 103,490.64 is: 142,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,435.12 : 236,603.16 = 103,490.64 : x
  2. Step 2: Convert to fraction form
    171,435.12/236,603.16 = 103,490.64/x
  3. Step 3: Cross multiply
    171,435.12x = 236,603.16 × 103,490.64
  4. Step 4: Simplify right side
    171,435.12x = 24,486,212,454.42
  5. Step 5: Solve for x
    x = 24,486,212,454.42/171,435.12
  6. Step 6: Final answer
    x = 142,830.78

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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.