Home / 109,056.82-163,518.26-42,419.28

Finding the Fourth Proportional to 109,056.82, 163,518.26 and 42,419.28

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Solution

The fourth proportional to 109,056.82, 163,518.26 and 42,419.28 is: 63,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,056.82 : 163,518.26 = 42,419.28 : x
  2. Step 2: Convert to fraction form
    109,056.82/163,518.26 = 42,419.28/x
  3. Step 3: Cross multiply
    109,056.82x = 163,518.26 × 42,419.28
  4. Step 4: Simplify right side
    109,056.82x = 6,936,326,856.05
  5. Step 5: Solve for x
    x = 6,936,326,856.05/109,056.82
  6. Step 6: Final answer
    x = 63,602.87

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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.