Home / 147,015.36-202,869-82,475.77

Finding the Fourth Proportional to 147,015.36, 202,869 and 82,475.77

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Solution

The fourth proportional to 147,015.36, 202,869 and 82,475.77 is: 113,809.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,015.36 : 202,869 = 82,475.77 : x
  2. Step 2: Convert to fraction form
    147,015.36/202,869 = 82,475.77/x
  3. Step 3: Cross multiply
    147,015.36x = 202,869 × 82,475.77
  4. Step 4: Simplify right side
    147,015.36x = 16,731,776,984.13
  5. Step 5: Solve for x
    x = 16,731,776,984.13/147,015.36
  6. Step 6: Final answer
    x = 113,809.72

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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.