Home / 130,436.33-195,357.42-77,736.92

Finding the Fourth Proportional to 130,436.33, 195,357.42 and 77,736.92

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Solution

The fourth proportional to 130,436.33, 195,357.42 and 77,736.92 is: 116,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,436.33 : 195,357.42 = 77,736.92 : x
  2. Step 2: Convert to fraction form
    130,436.33/195,357.42 = 77,736.92/x
  3. Step 3: Cross multiply
    130,436.33x = 195,357.42 × 77,736.92
  4. Step 4: Simplify right side
    130,436.33x = 15,186,483,153.16
  5. Step 5: Solve for x
    x = 15,186,483,153.16/130,436.33
  6. Step 6: Final answer
    x = 116,428.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.