Home / 117,158.40-161,944.32-107,858.16

Finding the Fourth Proportional to 117,158.40, 161,944.32 and 107,858.16

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Solution

The fourth proportional to 117,158.40, 161,944.32 and 107,858.16 is: 149,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,158.40 : 161,944.32 = 107,858.16 : x
  2. Step 2: Convert to fraction form
    117,158.40/161,944.32 = 107,858.16/x
  3. Step 3: Cross multiply
    117,158.40x = 161,944.32 × 107,858.16
  4. Step 4: Simplify right side
    117,158.40x = 17,467,016,377.65
  5. Step 5: Solve for x
    x = 17,467,016,377.65/117,158.40
  6. Step 6: Final answer
    x = 149,088.89

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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.