Home / 131,515.05-181,491.57-71,085.54

Finding the Fourth Proportional to 131,515.05, 181,491.57 and 71,085.54

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Solution

The fourth proportional to 131,515.05, 181,491.57 and 71,085.54 is: 98,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,515.05 : 181,491.57 = 71,085.54 : x
  2. Step 2: Convert to fraction form
    131,515.05/181,491.57 = 71,085.54/x
  3. Step 3: Cross multiply
    131,515.05x = 181,491.57 × 71,085.54
  4. Step 4: Simplify right side
    131,515.05x = 12,901,426,258.90
  5. Step 5: Solve for x
    x = 12,901,426,258.90/131,515.05
  6. Step 6: Final answer
    x = 98,098.48

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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.