Home / 129,199.01-178,343.35-75,501.48

Finding the Fourth Proportional to 129,199.01, 178,343.35 and 75,501.48

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Solution

The fourth proportional to 129,199.01, 178,343.35 and 75,501.48 is: 104,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,199.01 : 178,343.35 = 75,501.48 : x
  2. Step 2: Convert to fraction form
    129,199.01/178,343.35 = 75,501.48/x
  3. Step 3: Cross multiply
    129,199.01x = 178,343.35 × 75,501.48
  4. Step 4: Simplify right side
    129,199.01x = 13,465,186,015.62
  5. Step 5: Solve for x
    x = 13,465,186,015.62/129,199.01
  6. Step 6: Final answer
    x = 104,220.51

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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.