Home / 109,920.15-164,388.15-92,205.45

Finding the Fourth Proportional to 109,920.15, 164,388.15 and 92,205.45

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Solution

The fourth proportional to 109,920.15, 164,388.15 and 92,205.45 is: 137,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,920.15 : 164,388.15 = 92,205.45 : x
  2. Step 2: Convert to fraction form
    109,920.15/164,388.15 = 92,205.45/x
  3. Step 3: Cross multiply
    109,920.15x = 164,388.15 × 92,205.45
  4. Step 4: Simplify right side
    109,920.15x = 15,157,483,345.42
  5. Step 5: Solve for x
    x = 15,157,483,345.42/109,920.15
  6. Step 6: Final answer
    x = 137,895.40

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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.