Home / 124,148.91-171,313.64-69,688.61

Finding the Fourth Proportional to 124,148.91, 171,313.64 and 69,688.61

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Solution

The fourth proportional to 124,148.91, 171,313.64 and 69,688.61 is: 96,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,148.91 : 171,313.64 = 69,688.61 : x
  2. Step 2: Convert to fraction form
    124,148.91/171,313.64 = 69,688.61/x
  3. Step 3: Cross multiply
    124,148.91x = 171,313.64 × 69,688.61
  4. Step 4: Simplify right side
    124,148.91x = 11,938,609,405.72
  5. Step 5: Solve for x
    x = 11,938,609,405.72/124,148.91
  6. Step 6: Final answer
    x = 96,163.63

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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.