Home / 127,845.81-176,427.99-74,162.79

Finding the Fourth Proportional to 127,845.81, 176,427.99 and 74,162.79

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Solution

The fourth proportional to 127,845.81, 176,427.99 and 74,162.79 is: 102,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,845.81 : 176,427.99 = 74,162.79 : x
  2. Step 2: Convert to fraction form
    127,845.81/176,427.99 = 74,162.79/x
  3. Step 3: Cross multiply
    127,845.81x = 176,427.99 × 74,162.79
  4. Step 4: Simplify right side
    127,845.81x = 13,084,391,972.49
  5. Step 5: Solve for x
    x = 13,084,391,972.49/127,845.81
  6. Step 6: Final answer
    x = 102,345.10

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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.