Home / 127,235.08-175,504.98-81,973

Finding the Fourth Proportional to 127,235.08, 175,504.98 and 81,973

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Solution

The fourth proportional to 127,235.08, 175,504.98 and 81,973 is: 113,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,235.08 : 175,504.98 = 81,973 : x
  2. Step 2: Convert to fraction form
    127,235.08/175,504.98 = 81,973/x
  3. Step 3: Cross multiply
    127,235.08x = 175,504.98 × 81,973
  4. Step 4: Simplify right side
    127,235.08x = 14,386,669,725.54
  5. Step 5: Solve for x
    x = 14,386,669,725.54/127,235.08
  6. Step 6: Final answer
    x = 113,071.57

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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.