Home / 105,386.38-158,079.39-49,207.66

Finding the Fourth Proportional to 105,386.38, 158,079.39 and 49,207.66

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Solution

The fourth proportional to 105,386.38, 158,079.39 and 49,207.66 is: 73,811.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,386.38 : 158,079.39 = 49,207.66 : x
  2. Step 2: Convert to fraction form
    105,386.38/158,079.39 = 49,207.66/x
  3. Step 3: Cross multiply
    105,386.38x = 158,079.39 × 49,207.66
  4. Step 4: Simplify right side
    105,386.38x = 7,778,716,876.13
  5. Step 5: Solve for x
    x = 7,778,716,876.13/105,386.38
  6. Step 6: Final answer
    x = 73,811.41

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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.