Home / 141,762.45-195,641.01-78,100.23

Finding the Fourth Proportional to 141,762.45, 195,641.01 and 78,100.23

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Solution

The fourth proportional to 141,762.45, 195,641.01 and 78,100.23 is: 107,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,762.45 : 195,641.01 = 78,100.23 : x
  2. Step 2: Convert to fraction form
    141,762.45/195,641.01 = 78,100.23/x
  3. Step 3: Cross multiply
    141,762.45x = 195,641.01 × 78,100.23
  4. Step 4: Simplify right side
    141,762.45x = 15,279,607,878.43
  5. Step 5: Solve for x
    x = 15,279,607,878.43/141,762.45
  6. Step 6: Final answer
    x = 107,783.18

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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.