Home / 117,013.98-161,479.32-66,037.58

Finding the Fourth Proportional to 117,013.98, 161,479.32 and 66,037.58

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Solution

The fourth proportional to 117,013.98, 161,479.32 and 66,037.58 is: 91,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,013.98 : 161,479.32 = 66,037.58 : x
  2. Step 2: Convert to fraction form
    117,013.98/161,479.32 = 66,037.58/x
  3. Step 3: Cross multiply
    117,013.98x = 161,479.32 × 66,037.58
  4. Step 4: Simplify right side
    117,013.98x = 10,663,702,705.45
  5. Step 5: Solve for x
    x = 10,663,702,705.45/117,013.98
  6. Step 6: Final answer
    x = 91,131.87

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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.