Home / 141,665.80-195,500.10-78,005.08

Finding the Fourth Proportional to 141,665.80, 195,500.10 and 78,005.08

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Solution

The fourth proportional to 141,665.80, 195,500.10 and 78,005.08 is: 107,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,665.80 : 195,500.10 = 78,005.08 : x
  2. Step 2: Convert to fraction form
    141,665.80/195,500.10 = 78,005.08/x
  3. Step 3: Cross multiply
    141,665.80x = 195,500.10 × 78,005.08
  4. Step 4: Simplify right side
    141,665.80x = 15,250,000,940.51
  5. Step 5: Solve for x
    x = 15,250,000,940.51/141,665.80
  6. Step 6: Final answer
    x = 107,647.72

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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.