Home / 129,753.09-179,063.68-75,301.06

Finding the Fourth Proportional to 129,753.09, 179,063.68 and 75,301.06

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Solution

The fourth proportional to 129,753.09, 179,063.68 and 75,301.06 is: 103,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,753.09 : 179,063.68 = 75,301.06 : x
  2. Step 2: Convert to fraction form
    129,753.09/179,063.68 = 75,301.06/x
  3. Step 3: Cross multiply
    129,753.09x = 179,063.68 × 75,301.06
  4. Step 4: Simplify right side
    129,753.09x = 13,483,684,911.50
  5. Step 5: Solve for x
    x = 13,483,684,911.50/129,753.09
  6. Step 6: Final answer
    x = 103,918.03

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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.