Home / 106,864.29-160,328.53-31,986.88

Finding the Fourth Proportional to 106,864.29, 160,328.53 and 31,986.88

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Solution

The fourth proportional to 106,864.29, 160,328.53 and 31,986.88 is: 47,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,864.29 : 160,328.53 = 31,986.88 : x
  2. Step 2: Convert to fraction form
    106,864.29/160,328.53 = 31,986.88/x
  3. Step 3: Cross multiply
    106,864.29x = 160,328.53 × 31,986.88
  4. Step 4: Simplify right side
    106,864.29x = 5,128,409,449.69
  5. Step 5: Solve for x
    x = 5,128,409,449.69/106,864.29
  6. Step 6: Final answer
    x = 47,989.93

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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.