Home / 141,485.52-195,246.81-77,821.95

Finding the Fourth Proportional to 141,485.52, 195,246.81 and 77,821.95

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Solution

The fourth proportional to 141,485.52, 195,246.81 and 77,821.95 is: 107,392.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,485.52 : 195,246.81 = 77,821.95 : x
  2. Step 2: Convert to fraction form
    141,485.52/195,246.81 = 77,821.95/x
  3. Step 3: Cross multiply
    141,485.52x = 195,246.81 × 77,821.95
  4. Step 4: Simplify right side
    141,485.52x = 15,194,487,485.48
  5. Step 5: Solve for x
    x = 15,194,487,485.48/141,485.52
  6. Step 6: Final answer
    x = 107,392.53

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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.