Home / 129,998.34-179,331.21-84,752.10

Finding the Fourth Proportional to 129,998.34, 179,331.21 and 84,752.10

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Solution

The fourth proportional to 129,998.34, 179,331.21 and 84,752.10 is: 116,914.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,998.34 : 179,331.21 = 84,752.10 : x
  2. Step 2: Convert to fraction form
    129,998.34/179,331.21 = 84,752.10/x
  3. Step 3: Cross multiply
    129,998.34x = 179,331.21 × 84,752.10
  4. Step 4: Simplify right side
    129,998.34x = 15,198,696,643.04
  5. Step 5: Solve for x
    x = 15,198,696,643.04/129,998.34
  6. Step 6: Final answer
    x = 116,914.54

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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.