Home / 112,436.20-168,654.30-105,875.20

Finding the Fourth Proportional to 112,436.20, 168,654.30 and 105,875.20

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Solution

The fourth proportional to 112,436.20, 168,654.30 and 105,875.20 is: 158,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,436.20 : 168,654.30 = 105,875.20 : x
  2. Step 2: Convert to fraction form
    112,436.20/168,654.30 = 105,875.20/x
  3. Step 3: Cross multiply
    112,436.20x = 168,654.30 × 105,875.20
  4. Step 4: Simplify right side
    112,436.20x = 17,856,307,743.36
  5. Step 5: Solve for x
    x = 17,856,307,743.36/112,436.20
  6. Step 6: Final answer
    x = 158,812.80

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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.