Home / 127,131.60-175,431.88-73,392.08

Finding the Fourth Proportional to 127,131.60, 175,431.88 and 73,392.08

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Solution

The fourth proportional to 127,131.60, 175,431.88 and 73,392.08 is: 101,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,131.60 : 175,431.88 = 73,392.08 : x
  2. Step 2: Convert to fraction form
    127,131.60/175,431.88 = 73,392.08/x
  3. Step 3: Cross multiply
    127,131.60x = 175,431.88 × 73,392.08
  4. Step 4: Simplify right side
    127,131.60x = 12,875,310,571.51
  5. Step 5: Solve for x
    x = 12,875,310,571.51/127,131.60
  6. Step 6: Final answer
    x = 101,275.45

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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.