Home / 103,007.04-154,489.76-71,701.86

Finding the Fourth Proportional to 103,007.04, 154,489.76 and 71,701.86

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Solution

The fourth proportional to 103,007.04, 154,489.76 and 71,701.86 is: 107,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,007.04 : 154,489.76 = 71,701.86 : x
  2. Step 2: Convert to fraction form
    103,007.04/154,489.76 = 71,701.86/x
  3. Step 3: Cross multiply
    103,007.04x = 154,489.76 × 71,701.86
  4. Step 4: Simplify right side
    103,007.04x = 11,077,202,562.00
  5. Step 5: Solve for x
    x = 11,077,202,562.00/103,007.04
  6. Step 6: Final answer
    x = 107,538.30

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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.