Home / 141,886.02-195,793.88-78,223.70

Finding the Fourth Proportional to 141,886.02, 195,793.88 and 78,223.70

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Solution

The fourth proportional to 141,886.02, 195,793.88 and 78,223.70 is: 107,943.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,886.02 : 195,793.88 = 78,223.70 : x
  2. Step 2: Convert to fraction form
    141,886.02/195,793.88 = 78,223.70/x
  3. Step 3: Cross multiply
    141,886.02x = 195,793.88 × 78,223.70
  4. Step 4: Simplify right side
    141,886.02x = 15,315,721,730.96
  5. Step 5: Solve for x
    x = 15,315,721,730.96/141,886.02
  6. Step 6: Final answer
    x = 107,943.84

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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.