Home / 103,107.13-154,660.59-28,227.89

Finding the Fourth Proportional to 103,107.13, 154,660.59 and 28,227.89

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Solution

The fourth proportional to 103,107.13, 154,660.59 and 28,227.89 is: 42,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,107.13 : 154,660.59 = 28,227.89 : x
  2. Step 2: Convert to fraction form
    103,107.13/154,660.59 = 28,227.89/x
  3. Step 3: Cross multiply
    103,107.13x = 154,660.59 × 28,227.89
  4. Step 4: Simplify right side
    103,107.13x = 4,365,742,508.51
  5. Step 5: Solve for x
    x = 4,365,742,508.51/103,107.13
  6. Step 6: Final answer
    x = 42,341.81

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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.