Home / 141,875.04-195,796.13-78,212.55

Finding the Fourth Proportional to 141,875.04, 195,796.13 and 78,212.55

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Solution

The fourth proportional to 141,875.04, 195,796.13 and 78,212.55 is: 107,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,875.04 : 195,796.13 = 78,212.55 : x
  2. Step 2: Convert to fraction form
    141,875.04/195,796.13 = 78,212.55/x
  3. Step 3: Cross multiply
    141,875.04x = 195,796.13 × 78,212.55
  4. Step 4: Simplify right side
    141,875.04x = 15,313,714,216.37
  5. Step 5: Solve for x
    x = 15,313,714,216.37/141,875.04
  6. Step 6: Final answer
    x = 107,938.04

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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.