Home / 141,908.84-195,835.56-78,248.96

Finding the Fourth Proportional to 141,908.84, 195,835.56 and 78,248.96

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Solution

The fourth proportional to 141,908.84, 195,835.56 and 78,248.96 is: 107,984.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,908.84 : 195,835.56 = 78,248.96 : x
  2. Step 2: Convert to fraction form
    141,908.84/195,835.56 = 78,248.96/x
  3. Step 3: Cross multiply
    141,908.84x = 195,835.56 × 78,248.96
  4. Step 4: Simplify right side
    141,908.84x = 15,323,928,901.02
  5. Step 5: Solve for x
    x = 15,323,928,901.02/141,908.84
  6. Step 6: Final answer
    x = 107,984.32

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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.