Home / 106,207.20-159,305.54-39,642.21

Finding the Fourth Proportional to 106,207.20, 159,305.54 and 39,642.21

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Solution

The fourth proportional to 106,207.20, 159,305.54 and 39,642.21 is: 59,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,207.20 : 159,305.54 = 39,642.21 : x
  2. Step 2: Convert to fraction form
    106,207.20/159,305.54 = 39,642.21/x
  3. Step 3: Cross multiply
    106,207.20x = 159,305.54 × 39,642.21
  4. Step 4: Simplify right side
    106,207.20x = 6,315,223,472.63
  5. Step 5: Solve for x
    x = 6,315,223,472.63/106,207.20
  6. Step 6: Final answer
    x = 59,461.35

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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.