Home / 147,474.12-203,514.32-83,810.28

Finding the Fourth Proportional to 147,474.12, 203,514.32 and 83,810.28

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Solution

The fourth proportional to 147,474.12, 203,514.32 and 83,810.28 is: 115,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,474.12 : 203,514.32 = 83,810.28 : x
  2. Step 2: Convert to fraction form
    147,474.12/203,514.32 = 83,810.28/x
  3. Step 3: Cross multiply
    147,474.12x = 203,514.32 × 83,810.28
  4. Step 4: Simplify right side
    147,474.12x = 17,056,592,143.21
  5. Step 5: Solve for x
    x = 17,056,592,143.21/147,474.12
  6. Step 6: Final answer
    x = 115,658.21

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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.