Home / 105,687.32-158,551.01-55,720.18

Finding the Fourth Proportional to 105,687.32, 158,551.01 and 55,720.18

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Solution

The fourth proportional to 105,687.32, 158,551.01 and 55,720.18 is: 83,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,687.32 : 158,551.01 = 55,720.18 : x
  2. Step 2: Convert to fraction form
    105,687.32/158,551.01 = 55,720.18/x
  3. Step 3: Cross multiply
    105,687.32x = 158,551.01 × 55,720.18
  4. Step 4: Simplify right side
    105,687.32x = 8,834,489,745.03
  5. Step 5: Solve for x
    x = 8,834,489,745.03/105,687.32
  6. Step 6: Final answer
    x = 83,590.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.