Home / 141,800.04-195,684.12-78,137.28

Finding the Fourth Proportional to 141,800.04, 195,684.12 and 78,137.28

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Solution

The fourth proportional to 141,800.04, 195,684.12 and 78,137.28 is: 107,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,800.04 : 195,684.12 = 78,137.28 : x
  2. Step 2: Convert to fraction form
    141,800.04/195,684.12 = 78,137.28/x
  3. Step 3: Cross multiply
    141,800.04x = 195,684.12 × 78,137.28
  4. Step 4: Simplify right side
    141,800.04x = 15,290,224,875.99
  5. Step 5: Solve for x
    x = 15,290,224,875.99/141,800.04
  6. Step 6: Final answer
    x = 107,829.48

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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.