Home / 151,205.94-208,594.39-90,671.60

Finding the Fourth Proportional to 151,205.94, 208,594.39 and 90,671.60

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Solution

The fourth proportional to 151,205.94, 208,594.39 and 90,671.60 is: 125,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,205.94 : 208,594.39 = 90,671.60 : x
  2. Step 2: Convert to fraction form
    151,205.94/208,594.39 = 90,671.60/x
  3. Step 3: Cross multiply
    151,205.94x = 208,594.39 × 90,671.60
  4. Step 4: Simplify right side
    151,205.94x = 18,913,587,557.14
  5. Step 5: Solve for x
    x = 18,913,587,557.14/151,205.94
  6. Step 6: Final answer
    x = 125,084.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.