Home / 127,001.71-190,534.25-89,634.78

Finding the Fourth Proportional to 127,001.71, 190,534.25 and 89,634.78

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Solution

The fourth proportional to 127,001.71, 190,534.25 and 89,634.78 is: 134,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,001.71 : 190,534.25 = 89,634.78 : x
  2. Step 2: Convert to fraction form
    127,001.71/190,534.25 = 89,634.78/x
  3. Step 3: Cross multiply
    127,001.71x = 190,534.25 × 89,634.78
  4. Step 4: Simplify right side
    127,001.71x = 17,078,495,581.22
  5. Step 5: Solve for x
    x = 17,078,495,581.22/127,001.71
  6. Step 6: Final answer
    x = 134,474.53

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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.