Home / 105,427.25-158,102.80-42,261.83

Finding the Fourth Proportional to 105,427.25, 158,102.80 and 42,261.83

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Solution

The fourth proportional to 105,427.25, 158,102.80 and 42,261.83 is: 63,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,427.25 : 158,102.80 = 42,261.83 : x
  2. Step 2: Convert to fraction form
    105,427.25/158,102.80 = 42,261.83/x
  3. Step 3: Cross multiply
    105,427.25x = 158,102.80 × 42,261.83
  4. Step 4: Simplify right side
    105,427.25x = 6,681,713,656.12
  5. Step 5: Solve for x
    x = 6,681,713,656.12/105,427.25
  6. Step 6: Final answer
    x = 63,377.48

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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.