Home / 142,244.96-196,303.66-81,815.50

Finding the Fourth Proportional to 142,244.96, 196,303.66 and 81,815.50

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Solution

The fourth proportional to 142,244.96, 196,303.66 and 81,815.50 is: 112,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,244.96 : 196,303.66 = 81,815.50 : x
  2. Step 2: Convert to fraction form
    142,244.96/196,303.66 = 81,815.50/x
  3. Step 3: Cross multiply
    142,244.96x = 196,303.66 × 81,815.50
  4. Step 4: Simplify right side
    142,244.96x = 16,060,682,094.73
  5. Step 5: Solve for x
    x = 16,060,682,094.73/142,244.96
  6. Step 6: Final answer
    x = 112,908.62

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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.