Home / 147,230.46-203,186.16-86,836.50

Finding the Fourth Proportional to 147,230.46, 203,186.16 and 86,836.50

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Solution

The fourth proportional to 147,230.46, 203,186.16 and 86,836.50 is: 119,839.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,230.46 : 203,186.16 = 86,836.50 : x
  2. Step 2: Convert to fraction form
    147,230.46/203,186.16 = 86,836.50/x
  3. Step 3: Cross multiply
    147,230.46x = 203,186.16 × 86,836.50
  4. Step 4: Simplify right side
    147,230.46x = 17,643,974,982.84
  5. Step 5: Solve for x
    x = 17,643,974,982.84/147,230.46
  6. Step 6: Final answer
    x = 119,839.16

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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.