Home / 103,414.32-142,777.08-71,571.60

Finding the Fourth Proportional to 103,414.32, 142,777.08 and 71,571.60

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Solution

The fourth proportional to 103,414.32, 142,777.08 and 71,571.60 is: 98,814.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,414.32 : 142,777.08 = 71,571.60 : x
  2. Step 2: Convert to fraction form
    103,414.32/142,777.08 = 71,571.60/x
  3. Step 3: Cross multiply
    103,414.32x = 142,777.08 × 71,571.60
  4. Step 4: Simplify right side
    103,414.32x = 10,218,784,058.93
  5. Step 5: Solve for x
    x = 10,218,784,058.93/103,414.32
  6. Step 6: Final answer
    x = 98,814.01

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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.