Home / 129,124.36-178,175.04-75,370.48

Finding the Fourth Proportional to 129,124.36, 178,175.04 and 75,370.48

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Solution

The fourth proportional to 129,124.36, 178,175.04 and 75,370.48 is: 104,001.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,124.36 : 178,175.04 = 75,370.48 : x
  2. Step 2: Convert to fraction form
    129,124.36/178,175.04 = 75,370.48/x
  3. Step 3: Cross multiply
    129,124.36x = 178,175.04 × 75,370.48
  4. Step 4: Simplify right side
    129,124.36x = 13,429,138,288.82
  5. Step 5: Solve for x
    x = 13,429,138,288.82/129,124.36
  6. Step 6: Final answer
    x = 104,001.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.