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Finding the Fourth Proportional to 146,978.75, 202,867.41 and 90,357.32

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Solution

The fourth proportional to 146,978.75, 202,867.41 and 90,357.32 is: 124,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,978.75 : 202,867.41 = 90,357.32 : x
  2. Step 2: Convert to fraction form
    146,978.75/202,867.41 = 90,357.32/x
  3. Step 3: Cross multiply
    146,978.75x = 202,867.41 × 90,357.32
  4. Step 4: Simplify right side
    146,978.75x = 18,330,555,482.94
  5. Step 5: Solve for x
    x = 18,330,555,482.94/146,978.75
  6. Step 6: Final answer
    x = 124,715.68

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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.