Home / 141,864.90-195,774.89-78,204.98

Finding the Fourth Proportional to 141,864.90, 195,774.89 and 78,204.98

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Solution

The fourth proportional to 141,864.90, 195,774.89 and 78,204.98 is: 107,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,864.90 : 195,774.89 = 78,204.98 : x
  2. Step 2: Convert to fraction form
    141,864.90/195,774.89 = 78,204.98/x
  3. Step 3: Cross multiply
    141,864.90x = 195,774.89 × 78,204.98
  4. Step 4: Simplify right side
    141,864.90x = 15,310,570,573.59
  5. Step 5: Solve for x
    x = 15,310,570,573.59/141,864.90
  6. Step 6: Final answer
    x = 107,923.60

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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.