Home / 115,082.64-158,802.66-84,884.22

Finding the Fourth Proportional to 115,082.64, 158,802.66 and 84,884.22

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Solution

The fourth proportional to 115,082.64, 158,802.66 and 84,884.22 is: 117,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,082.64 : 158,802.66 = 84,884.22 : x
  2. Step 2: Convert to fraction form
    115,082.64/158,802.66 = 84,884.22/x
  3. Step 3: Cross multiply
    115,082.64x = 158,802.66 × 84,884.22
  4. Step 4: Simplify right side
    115,082.64x = 13,479,839,928.03
  5. Step 5: Solve for x
    x = 13,479,839,928.03/115,082.64
  6. Step 6: Final answer
    x = 117,131.83

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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.