Home / 105,529.32-158,293.67-81,548.52

Finding the Fourth Proportional to 105,529.32, 158,293.67 and 81,548.52

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Solution

The fourth proportional to 105,529.32, 158,293.67 and 81,548.52 is: 122,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,529.32 : 158,293.67 = 81,548.52 : x
  2. Step 2: Convert to fraction form
    105,529.32/158,293.67 = 81,548.52/x
  3. Step 3: Cross multiply
    105,529.32x = 158,293.67 × 81,548.52
  4. Step 4: Simplify right side
    105,529.32x = 12,908,614,106.13
  5. Step 5: Solve for x
    x = 12,908,614,106.13/105,529.32
  6. Step 6: Final answer
    x = 122,322.54

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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.