Home / 127,141.20-175,435.02-73,415.88

Finding the Fourth Proportional to 127,141.20, 175,435.02 and 73,415.88

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Solution

The fourth proportional to 127,141.20, 175,435.02 and 73,415.88 is: 101,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,141.20 : 175,435.02 = 73,415.88 : x
  2. Step 2: Convert to fraction form
    127,141.20/175,435.02 = 73,415.88/x
  3. Step 3: Cross multiply
    127,141.20x = 175,435.02 × 73,415.88
  4. Step 4: Simplify right side
    127,141.20x = 12,879,716,376.12
  5. Step 5: Solve for x
    x = 12,879,716,376.12/127,141.20
  6. Step 6: Final answer
    x = 101,302.46

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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.