Home / 129,971.35-179,258.52-84,663.58

Finding the Fourth Proportional to 129,971.35, 179,258.52 and 84,663.58

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Solution

The fourth proportional to 129,971.35, 179,258.52 and 84,663.58 is: 116,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,971.35 : 179,258.52 = 84,663.58 : x
  2. Step 2: Convert to fraction form
    129,971.35/179,258.52 = 84,663.58/x
  3. Step 3: Cross multiply
    129,971.35x = 179,258.52 × 84,663.58
  4. Step 4: Simplify right side
    129,971.35x = 15,176,668,048.70
  5. Step 5: Solve for x
    x = 15,176,668,048.70/129,971.35
  6. Step 6: Final answer
    x = 116,769.33

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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.