Home / 106,215.60-159,192.18-53,640.12

Finding the Fourth Proportional to 106,215.60, 159,192.18 and 53,640.12

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Solution

The fourth proportional to 106,215.60, 159,192.18 and 53,640.12 is: 80,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,215.60 : 159,192.18 = 53,640.12 : x
  2. Step 2: Convert to fraction form
    106,215.60/159,192.18 = 53,640.12/x
  3. Step 3: Cross multiply
    106,215.60x = 159,192.18 × 53,640.12
  4. Step 4: Simplify right side
    106,215.60x = 8,539,087,638.26
  5. Step 5: Solve for x
    x = 8,539,087,638.26/106,215.60
  6. Step 6: Final answer
    x = 80,393.91

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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.