Home / 145,504.18-200,823.34-91,081.64

Finding the Fourth Proportional to 145,504.18, 200,823.34 and 91,081.64

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Solution

The fourth proportional to 145,504.18, 200,823.34 and 91,081.64 is: 125,709.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,504.18 : 200,823.34 = 91,081.64 : x
  2. Step 2: Convert to fraction form
    145,504.18/200,823.34 = 91,081.64/x
  3. Step 3: Cross multiply
    145,504.18x = 200,823.34 × 91,081.64
  4. Step 4: Simplify right side
    145,504.18x = 18,291,319,157.48
  5. Step 5: Solve for x
    x = 18,291,319,157.48/145,504.18
  6. Step 6: Final answer
    x = 125,709.92

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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.