Home / 102,742.34-154,041.05-39,509.33

Finding the Fourth Proportional to 102,742.34, 154,041.05 and 39,509.33

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Solution

The fourth proportional to 102,742.34, 154,041.05 and 39,509.33 is: 59,236.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,742.34 : 154,041.05 = 39,509.33 : x
  2. Step 2: Convert to fraction form
    102,742.34/154,041.05 = 39,509.33/x
  3. Step 3: Cross multiply
    102,742.34x = 154,041.05 × 39,509.33
  4. Step 4: Simplify right side
    102,742.34x = 6,086,059,161.87
  5. Step 5: Solve for x
    x = 6,086,059,161.87/102,742.34
  6. Step 6: Final answer
    x = 59,236.14

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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.