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Finding the Fourth Proportional to 112,510.80, 168,809.40 and 110,739.60

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Solution

The fourth proportional to 112,510.80, 168,809.40 and 110,739.60 is: 166,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,510.80 : 168,809.40 = 110,739.60 : x
  2. Step 2: Convert to fraction form
    112,510.80/168,809.40 = 110,739.60/x
  3. Step 3: Cross multiply
    112,510.80x = 168,809.40 × 110,739.60
  4. Step 4: Simplify right side
    112,510.80x = 18,693,885,432.24
  5. Step 5: Solve for x
    x = 18,693,885,432.24/112,510.80
  6. Step 6: Final answer
    x = 166,151.92

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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.