Home / 142,365.04-196,471.32-81,944.88

Finding the Fourth Proportional to 142,365.04, 196,471.32 and 81,944.88

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Solution

The fourth proportional to 142,365.04, 196,471.32 and 81,944.88 is: 113,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,365.04 : 196,471.32 = 81,944.88 : x
  2. Step 2: Convert to fraction form
    142,365.04/196,471.32 = 81,944.88/x
  3. Step 3: Cross multiply
    142,365.04x = 196,471.32 × 81,944.88
  4. Step 4: Simplify right side
    142,365.04x = 16,099,818,740.84
  5. Step 5: Solve for x
    x = 16,099,818,740.84/142,365.04
  6. Step 6: Final answer
    x = 113,088.29

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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.