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Finding the Fourth Proportional to 126,430.41, 174,459.09 and 69,838.41

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Solution

The fourth proportional to 126,430.41, 174,459.09 and 69,838.41 is: 96,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,430.41 : 174,459.09 = 69,838.41 : x
  2. Step 2: Convert to fraction form
    126,430.41/174,459.09 = 69,838.41/x
  3. Step 3: Cross multiply
    126,430.41x = 174,459.09 × 69,838.41
  4. Step 4: Simplify right side
    126,430.41x = 12,183,945,455.65
  5. Step 5: Solve for x
    x = 12,183,945,455.65/126,430.41
  6. Step 6: Final answer
    x = 96,368.79

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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.