Home / 141,485.37-195,248.79-77,821.80

Finding the Fourth Proportional to 141,485.37, 195,248.79 and 77,821.80

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Solution

The fourth proportional to 141,485.37, 195,248.79 and 77,821.80 is: 107,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,485.37 : 195,248.79 = 77,821.80 : x
  2. Step 2: Convert to fraction form
    141,485.37/195,248.79 = 77,821.80/x
  3. Step 3: Cross multiply
    141,485.37x = 195,248.79 × 77,821.80
  4. Step 4: Simplify right side
    141,485.37x = 15,194,612,285.62
  5. Step 5: Solve for x
    x = 15,194,612,285.62/141,485.37
  6. Step 6: Final answer
    x = 107,393.52

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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.