Home / 129,198.48-193,874.04-70,032.72

Finding the Fourth Proportional to 129,198.48, 193,874.04 and 70,032.72

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Solution

The fourth proportional to 129,198.48, 193,874.04 and 70,032.72 is: 105,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,198.48 : 193,874.04 = 70,032.72 : x
  2. Step 2: Convert to fraction form
    129,198.48/193,874.04 = 70,032.72/x
  3. Step 3: Cross multiply
    129,198.48x = 193,874.04 × 70,032.72
  4. Step 4: Simplify right side
    129,198.48x = 13,577,526,358.59
  5. Step 5: Solve for x
    x = 13,577,526,358.59/129,198.48
  6. Step 6: Final answer
    x = 105,090.45

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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.