Home / 147,253.56-203,205.40-81,842.16

Finding the Fourth Proportional to 147,253.56, 203,205.40 and 81,842.16

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Solution

The fourth proportional to 147,253.56, 203,205.40 and 81,842.16 is: 112,939.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,253.56 : 203,205.40 = 81,842.16 : x
  2. Step 2: Convert to fraction form
    147,253.56/203,205.40 = 81,842.16/x
  3. Step 3: Cross multiply
    147,253.56x = 203,205.40 × 81,842.16
  4. Step 4: Simplify right side
    147,253.56x = 16,630,768,859.66
  5. Step 5: Solve for x
    x = 16,630,768,859.66/147,253.56
  6. Step 6: Final answer
    x = 112,939.67

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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.