Home / 127,903.12-176,617.74-80,238.40

Finding the Fourth Proportional to 127,903.12, 176,617.74 and 80,238.40

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Solution

The fourth proportional to 127,903.12, 176,617.74 and 80,238.40 is: 110,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,903.12 : 176,617.74 = 80,238.40 : x
  2. Step 2: Convert to fraction form
    127,903.12/176,617.74 = 80,238.40/x
  3. Step 3: Cross multiply
    127,903.12x = 176,617.74 × 80,238.40
  4. Step 4: Simplify right side
    127,903.12x = 14,171,524,869.22
  5. Step 5: Solve for x
    x = 14,171,524,869.22/127,903.12
  6. Step 6: Final answer
    x = 110,798.90

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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.