Home / 102,703.88-154,182.69-48,720.18

Finding the Fourth Proportional to 102,703.88, 154,182.69 and 48,720.18

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Solution

The fourth proportional to 102,703.88, 154,182.69 and 48,720.18 is: 73,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.88 : 154,182.69 = 48,720.18 : x
  2. Step 2: Convert to fraction form
    102,703.88/154,182.69 = 48,720.18/x
  3. Step 3: Cross multiply
    102,703.88x = 154,182.69 × 48,720.18
  4. Step 4: Simplify right side
    102,703.88x = 7,511,808,409.68
  5. Step 5: Solve for x
    x = 7,511,808,409.68/102,703.88
  6. Step 6: Final answer
    x = 73,140.45

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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.