Home / 158,173.18-218,279.01-86,553.19

Finding the Fourth Proportional to 158,173.18, 218,279.01 and 86,553.19

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Solution

The fourth proportional to 158,173.18, 218,279.01 and 86,553.19 is: 119,443.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,173.18 : 218,279.01 = 86,553.19 : x
  2. Step 2: Convert to fraction form
    158,173.18/218,279.01 = 86,553.19/x
  3. Step 3: Cross multiply
    158,173.18x = 218,279.01 × 86,553.19
  4. Step 4: Simplify right side
    158,173.18x = 18,892,744,625.54
  5. Step 5: Solve for x
    x = 18,892,744,625.54/158,173.18
  6. Step 6: Final answer
    x = 119,443.41

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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.