Home / 130,362.49-179,902.79-85,069.45

Finding the Fourth Proportional to 130,362.49, 179,902.79 and 85,069.45

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Solution

The fourth proportional to 130,362.49, 179,902.79 and 85,069.45 is: 117,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,362.49 : 179,902.79 = 85,069.45 : x
  2. Step 2: Convert to fraction form
    130,362.49/179,902.79 = 85,069.45/x
  3. Step 3: Cross multiply
    130,362.49x = 179,902.79 × 85,069.45
  4. Step 4: Simplify right side
    130,362.49x = 15,304,231,398.77
  5. Step 5: Solve for x
    x = 15,304,231,398.77/130,362.49
  6. Step 6: Final answer
    x = 117,397.51

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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.