Home / 127,785.88-176,345.71-70,427.30

Finding the Fourth Proportional to 127,785.88, 176,345.71 and 70,427.30

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Solution

The fourth proportional to 127,785.88, 176,345.71 and 70,427.30 is: 97,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,785.88 : 176,345.71 = 70,427.30 : x
  2. Step 2: Convert to fraction form
    127,785.88/176,345.71 = 70,427.30/x
  3. Step 3: Cross multiply
    127,785.88x = 176,345.71 × 70,427.30
  4. Step 4: Simplify right side
    127,785.88x = 12,419,552,486.68
  5. Step 5: Solve for x
    x = 12,419,552,486.68/127,785.88
  6. Step 6: Final answer
    x = 97,190.34

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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.