Home / 145,520.32-200,800.08-91,785.04

Finding the Fourth Proportional to 145,520.32, 200,800.08 and 91,785.04

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Solution

The fourth proportional to 145,520.32, 200,800.08 and 91,785.04 is: 126,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,520.32 : 200,800.08 = 91,785.04 : x
  2. Step 2: Convert to fraction form
    145,520.32/200,800.08 = 91,785.04/x
  3. Step 3: Cross multiply
    145,520.32x = 200,800.08 × 91,785.04
  4. Step 4: Simplify right side
    145,520.32x = 18,430,443,374.80
  5. Step 5: Solve for x
    x = 18,430,443,374.80/145,520.32
  6. Step 6: Final answer
    x = 126,652.03

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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.