Home / 109,383.04-163,795.65-87,228.73

Finding the Fourth Proportional to 109,383.04, 163,795.65 and 87,228.73

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Solution

The fourth proportional to 109,383.04, 163,795.65 and 87,228.73 is: 130,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,383.04 : 163,795.65 = 87,228.73 : x
  2. Step 2: Convert to fraction form
    109,383.04/163,795.65 = 87,228.73/x
  3. Step 3: Cross multiply
    109,383.04x = 163,795.65 × 87,228.73
  4. Step 4: Simplify right side
    109,383.04x = 14,287,686,529.02
  5. Step 5: Solve for x
    x = 14,287,686,529.02/109,383.04
  6. Step 6: Final answer
    x = 130,620.68

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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.