Home / 136,541.75-188,428.01-79,192.13

Finding the Fourth Proportional to 136,541.75, 188,428.01 and 79,192.13

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Solution

The fourth proportional to 136,541.75, 188,428.01 and 79,192.13 is: 109,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,541.75 : 188,428.01 = 79,192.13 : x
  2. Step 2: Convert to fraction form
    136,541.75/188,428.01 = 79,192.13/x
  3. Step 3: Cross multiply
    136,541.75x = 188,428.01 × 79,192.13
  4. Step 4: Simplify right side
    136,541.75x = 14,922,014,125.46
  5. Step 5: Solve for x
    x = 14,922,014,125.46/136,541.75
  6. Step 6: Final answer
    x = 109,285.36

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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.