Home / 127,712.22-176,242.81-74,028.36

Finding the Fourth Proportional to 127,712.22, 176,242.81 and 74,028.36

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Solution

The fourth proportional to 127,712.22, 176,242.81 and 74,028.36 is: 102,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,712.22 : 176,242.81 = 74,028.36 : x
  2. Step 2: Convert to fraction form
    127,712.22/176,242.81 = 74,028.36/x
  3. Step 3: Cross multiply
    127,712.22x = 176,242.81 × 74,028.36
  4. Step 4: Simplify right side
    127,712.22x = 13,046,965,521.89
  5. Step 5: Solve for x
    x = 13,046,965,521.89/127,712.22
  6. Step 6: Final answer
    x = 102,159.10

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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.