Home / 147,215.35-203,158.16-83,554.21

Finding the Fourth Proportional to 147,215.35, 203,158.16 and 83,554.21

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Solution

The fourth proportional to 147,215.35, 203,158.16 and 83,554.21 is: 115,305.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,215.35 : 203,158.16 = 83,554.21 : x
  2. Step 2: Convert to fraction form
    147,215.35/203,158.16 = 83,554.21/x
  3. Step 3: Cross multiply
    147,215.35x = 203,158.16 × 83,554.21
  4. Step 4: Simplify right side
    147,215.35x = 16,974,719,563.85
  5. Step 5: Solve for x
    x = 16,974,719,563.85/147,215.35
  6. Step 6: Final answer
    x = 115,305.36

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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.