Home / 142,037.94-196,005.80-81,566.04

Finding the Fourth Proportional to 142,037.94, 196,005.80 and 81,566.04

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Solution

The fourth proportional to 142,037.94, 196,005.80 and 81,566.04 is: 112,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,037.94 : 196,005.80 = 81,566.04 : x
  2. Step 2: Convert to fraction form
    142,037.94/196,005.80 = 81,566.04/x
  3. Step 3: Cross multiply
    142,037.94x = 196,005.80 × 81,566.04
  4. Step 4: Simplify right side
    142,037.94x = 15,987,416,923.03
  5. Step 5: Solve for x
    x = 15,987,416,923.03/142,037.94
  6. Step 6: Final answer
    x = 112,557.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.