Home / 123,172.36-169,975.48-69,456.40

Finding the Fourth Proportional to 123,172.36, 169,975.48 and 69,456.40

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Solution

The fourth proportional to 123,172.36, 169,975.48 and 69,456.40 is: 95,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,172.36 : 169,975.48 = 69,456.40 : x
  2. Step 2: Convert to fraction form
    123,172.36/169,975.48 = 69,456.40/x
  3. Step 3: Cross multiply
    123,172.36x = 169,975.48 × 69,456.40
  4. Step 4: Simplify right side
    123,172.36x = 11,805,884,929.07
  5. Step 5: Solve for x
    x = 11,805,884,929.07/123,172.36
  6. Step 6: Final answer
    x = 95,848.49

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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.