Home / 127,046.09-190,236.21-89,402.35

Finding the Fourth Proportional to 127,046.09, 190,236.21 and 89,402.35

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Solution

The fourth proportional to 127,046.09, 190,236.21 and 89,402.35 is: 133,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,046.09 : 190,236.21 = 89,402.35 : x
  2. Step 2: Convert to fraction form
    127,046.09/190,236.21 = 89,402.35/x
  3. Step 3: Cross multiply
    127,046.09x = 190,236.21 × 89,402.35
  4. Step 4: Simplify right side
    127,046.09x = 17,007,564,277.83
  5. Step 5: Solve for x
    x = 17,007,564,277.83/127,046.09
  6. Step 6: Final answer
    x = 133,869.25

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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.