Home / 112,036.20-168,054.30-78,793.80

Finding the Fourth Proportional to 112,036.20, 168,054.30 and 78,793.80

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Solution

The fourth proportional to 112,036.20, 168,054.30 and 78,793.80 is: 118,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,036.20 : 168,054.30 = 78,793.80 : x
  2. Step 2: Convert to fraction form
    112,036.20/168,054.30 = 78,793.80/x
  3. Step 3: Cross multiply
    112,036.20x = 168,054.30 × 78,793.80
  4. Step 4: Simplify right side
    112,036.20x = 13,241,636,903.34
  5. Step 5: Solve for x
    x = 13,241,636,903.34/112,036.20
  6. Step 6: Final answer
    x = 118,190.70

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1.5x scale

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.