Home / 105,729.16-158,611.52-52,423.77

Finding the Fourth Proportional to 105,729.16, 158,611.52 and 52,423.77

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Solution

The fourth proportional to 105,729.16, 158,611.52 and 52,423.77 is: 78,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,729.16 : 158,611.52 = 52,423.77 : x
  2. Step 2: Convert to fraction form
    105,729.16/158,611.52 = 52,423.77/x
  3. Step 3: Cross multiply
    105,729.16x = 158,611.52 × 52,423.77
  4. Step 4: Simplify right side
    105,729.16x = 8,315,014,240.36
  5. Step 5: Solve for x
    x = 8,315,014,240.36/105,729.16
  6. Step 6: Final answer
    x = 78,644.47

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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.