Home / 145,808.73-201,216.06-82,146.51

Finding the Fourth Proportional to 145,808.73, 201,216.06 and 82,146.51

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Solution

The fourth proportional to 145,808.73, 201,216.06 and 82,146.51 is: 113,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,808.73 : 201,216.06 = 82,146.51 : x
  2. Step 2: Convert to fraction form
    145,808.73/201,216.06 = 82,146.51/x
  3. Step 3: Cross multiply
    145,808.73x = 201,216.06 × 82,146.51
  4. Step 4: Simplify right side
    145,808.73x = 16,529,197,084.95
  5. Step 5: Solve for x
    x = 16,529,197,084.95/145,808.73
  6. Step 6: Final answer
    x = 113,362.19

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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.