Home / 127,129.37-175,470.77-86,859.41

Finding the Fourth Proportional to 127,129.37, 175,470.77 and 86,859.41

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Solution

The fourth proportional to 127,129.37, 175,470.77 and 86,859.41 is: 119,888.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,129.37 : 175,470.77 = 86,859.41 : x
  2. Step 2: Convert to fraction form
    127,129.37/175,470.77 = 86,859.41/x
  3. Step 3: Cross multiply
    127,129.37x = 175,470.77 × 86,859.41
  4. Step 4: Simplify right side
    127,129.37x = 15,241,286,894.24
  5. Step 5: Solve for x
    x = 15,241,286,894.24/127,129.37
  6. Step 6: Final answer
    x = 119,888.01

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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.