Home / 105,518.10-158,203.32-52,898.88

Finding the Fourth Proportional to 105,518.10, 158,203.32 and 52,898.88

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Solution

The fourth proportional to 105,518.10, 158,203.32 and 52,898.88 is: 79,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,518.10 : 158,203.32 = 52,898.88 : x
  2. Step 2: Convert to fraction form
    105,518.10/158,203.32 = 52,898.88/x
  3. Step 3: Cross multiply
    105,518.10x = 158,203.32 × 52,898.88
  4. Step 4: Simplify right side
    105,518.10x = 8,368,778,440.28
  5. Step 5: Solve for x
    x = 8,368,778,440.28/105,518.10
  6. Step 6: Final answer
    x = 79,311.31

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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.