Home / 115,288.65-158,768.51-83,407.05

Finding the Fourth Proportional to 115,288.65, 158,768.51 and 83,407.05

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Solution

The fourth proportional to 115,288.65, 158,768.51 and 83,407.05 is: 114,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,288.65 : 158,768.51 = 83,407.05 : x
  2. Step 2: Convert to fraction form
    115,288.65/158,768.51 = 83,407.05/x
  3. Step 3: Cross multiply
    115,288.65x = 158,768.51 × 83,407.05
  4. Step 4: Simplify right side
    115,288.65x = 13,242,412,634.96
  5. Step 5: Solve for x
    x = 13,242,412,634.96/115,288.65
  6. Step 6: Final answer
    x = 114,863.11

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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.