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Finding the Fourth Proportional to 155,435.73, 214,501.32 and 88,367.73

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Solution

The fourth proportional to 155,435.73, 214,501.32 and 88,367.73 is: 121,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,435.73 : 214,501.32 = 88,367.73 : x
  2. Step 2: Convert to fraction form
    155,435.73/214,501.32 = 88,367.73/x
  3. Step 3: Cross multiply
    155,435.73x = 214,501.32 × 88,367.73
  4. Step 4: Simplify right side
    155,435.73x = 18,954,994,730.40
  5. Step 5: Solve for x
    x = 18,954,994,730.40/155,435.73
  6. Step 6: Final answer
    x = 121,947.47

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1.5x scale

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.