Home / 109,235.31-163,873.64-42,671.23

Finding the Fourth Proportional to 109,235.31, 163,873.64 and 42,671.23

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Solution

The fourth proportional to 109,235.31, 163,873.64 and 42,671.23 is: 64,014.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,235.31 : 163,873.64 = 42,671.23 : x
  2. Step 2: Convert to fraction form
    109,235.31/163,873.64 = 42,671.23/x
  3. Step 3: Cross multiply
    109,235.31x = 163,873.64 × 42,671.23
  4. Step 4: Simplify right side
    109,235.31x = 6,992,689,783.38
  5. Step 5: Solve for x
    x = 6,992,689,783.38/109,235.31
  6. Step 6: Final answer
    x = 64,014.92

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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.