Home / 123,892.47-170,971.16-70,172.19

Finding the Fourth Proportional to 123,892.47, 170,971.16 and 70,172.19

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Solution

The fourth proportional to 123,892.47, 170,971.16 and 70,172.19 is: 96,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,892.47 : 170,971.16 = 70,172.19 : x
  2. Step 2: Convert to fraction form
    123,892.47/170,971.16 = 70,172.19/x
  3. Step 3: Cross multiply
    123,892.47x = 170,971.16 × 70,172.19
  4. Step 4: Simplify right side
    123,892.47x = 11,997,420,373.18
  5. Step 5: Solve for x
    x = 11,997,420,373.18/123,892.47
  6. Step 6: Final answer
    x = 96,837.37

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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.