Home / 127,875.09-191,867.91-68,641.56

Finding the Fourth Proportional to 127,875.09, 191,867.91 and 68,641.56

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Solution

The fourth proportional to 127,875.09, 191,867.91 and 68,641.56 is: 102,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,875.09 : 191,867.91 = 68,641.56 : x
  2. Step 2: Convert to fraction form
    127,875.09/191,867.91 = 68,641.56/x
  3. Step 3: Cross multiply
    127,875.09x = 191,867.91 × 68,641.56
  4. Step 4: Simplify right side
    127,875.09x = 13,170,112,656.34
  5. Step 5: Solve for x
    x = 13,170,112,656.34/127,875.09
  6. Step 6: Final answer
    x = 102,992.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.