Home / 144,005.30-215,825.70-55,140.20

Finding the Fourth Proportional to 144,005.30, 215,825.70 and 55,140.20

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Solution

The fourth proportional to 144,005.30, 215,825.70 and 55,140.20 is: 82,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.30 : 215,825.70 = 55,140.20 : x
  2. Step 2: Convert to fraction form
    144,005.30/215,825.70 = 55,140.20/x
  3. Step 3: Cross multiply
    144,005.30x = 215,825.70 × 55,140.20
  4. Step 4: Simplify right side
    144,005.30x = 11,900,672,263.14
  5. Step 5: Solve for x
    x = 11,900,672,263.14/144,005.30
  6. Step 6: Final answer
    x = 82,640.52

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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.