Home / 141,869.37-195,781.02-78,209.45

Finding the Fourth Proportional to 141,869.37, 195,781.02 and 78,209.45

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Solution

The fourth proportional to 141,869.37, 195,781.02 and 78,209.45 is: 107,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,869.37 : 195,781.02 = 78,209.45 : x
  2. Step 2: Convert to fraction form
    141,869.37/195,781.02 = 78,209.45/x
  3. Step 3: Cross multiply
    141,869.37x = 195,781.02 × 78,209.45
  4. Step 4: Simplify right side
    141,869.37x = 15,311,925,356.63
  5. Step 5: Solve for x
    x = 15,311,925,356.63/141,869.37
  6. Step 6: Final answer
    x = 107,929.75

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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.