Home / 106,215.27-159,285.78-31,315.53

Finding the Fourth Proportional to 106,215.27, 159,285.78 and 31,315.53

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Solution

The fourth proportional to 106,215.27, 159,285.78 and 31,315.53 is: 46,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,215.27 : 159,285.78 = 31,315.53 : x
  2. Step 2: Convert to fraction form
    106,215.27/159,285.78 = 31,315.53/x
  3. Step 3: Cross multiply
    106,215.27x = 159,285.78 × 31,315.53
  4. Step 4: Simplify right side
    106,215.27x = 4,988,118,622.16
  5. Step 5: Solve for x
    x = 4,988,118,622.16/106,215.27
  6. Step 6: Final answer
    x = 46,962.35

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1.5x scale

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.