Home / 451,280.16-676,915-109,725.56

Finding the Fourth Proportional to 451,280.16, 676,915 and 109,725.56

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Solution

The fourth proportional to 451,280.16, 676,915 and 109,725.56 is: 164,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,280.16 : 676,915 = 109,725.56 : x
  2. Step 2: Convert to fraction form
    451,280.16/676,915 = 109,725.56/x
  3. Step 3: Cross multiply
    451,280.16x = 676,915 × 109,725.56
  4. Step 4: Simplify right side
    451,280.16x = 74,274,877,447.40
  5. Step 5: Solve for x
    x = 74,274,877,447.40/451,280.16
  6. Step 6: Final answer
    x = 164,587.07

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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.