Home / 145,800.59-201,203.91-82,158.89

Finding the Fourth Proportional to 145,800.59, 201,203.91 and 82,158.89

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Solution

The fourth proportional to 145,800.59, 201,203.91 and 82,158.89 is: 113,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,800.59 : 201,203.91 = 82,158.89 : x
  2. Step 2: Convert to fraction form
    145,800.59/201,203.91 = 82,158.89/x
  3. Step 3: Cross multiply
    145,800.59x = 201,203.91 × 82,158.89
  4. Step 4: Simplify right side
    145,800.59x = 16,530,688,903.24
  5. Step 5: Solve for x
    x = 16,530,688,903.24/145,800.59
  6. Step 6: Final answer
    x = 113,378.76

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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.