Home / 145,620.54-200,955.89-81,958.32

Finding the Fourth Proportional to 145,620.54, 200,955.89 and 81,958.32

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Solution

The fourth proportional to 145,620.54, 200,955.89 and 81,958.32 is: 113,102.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,620.54 : 200,955.89 = 81,958.32 : x
  2. Step 2: Convert to fraction form
    145,620.54/200,955.89 = 81,958.32/x
  3. Step 3: Cross multiply
    145,620.54x = 200,955.89 × 81,958.32
  4. Step 4: Simplify right side
    145,620.54x = 16,470,007,343.40
  5. Step 5: Solve for x
    x = 16,470,007,343.40/145,620.54
  6. Step 6: Final answer
    x = 113,102.23

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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.