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Finding the Fourth Proportional to 188,373.69, 282,670.70 and 70,128.81

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Solution

The fourth proportional to 188,373.69, 282,670.70 and 70,128.81 is: 105,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,373.69 : 282,670.70 = 70,128.81 : x
  2. Step 2: Convert to fraction form
    188,373.69/282,670.70 = 70,128.81/x
  3. Step 3: Cross multiply
    188,373.69x = 282,670.70 × 70,128.81
  4. Step 4: Simplify right side
    188,373.69x = 19,823,359,462.22
  5. Step 5: Solve for x
    x = 19,823,359,462.22/188,373.69
  6. Step 6: Final answer
    x = 105,234.23

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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.