Home / 129,269.04-178,331.40-75,556.32

Finding the Fourth Proportional to 129,269.04, 178,331.40 and 75,556.32

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Solution

The fourth proportional to 129,269.04, 178,331.40 and 75,556.32 is: 104,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,269.04 : 178,331.40 = 75,556.32 : x
  2. Step 2: Convert to fraction form
    129,269.04/178,331.40 = 75,556.32/x
  3. Step 3: Cross multiply
    129,269.04x = 178,331.40 × 75,556.32
  4. Step 4: Simplify right side
    129,269.04x = 13,474,064,324.45
  5. Step 5: Solve for x
    x = 13,474,064,324.45/129,269.04
  6. Step 6: Final answer
    x = 104,232.73

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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.