Home / 158,549.12-218,754.24-98,090.72

Finding the Fourth Proportional to 158,549.12, 218,754.24 and 98,090.72

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Solution

The fourth proportional to 158,549.12, 218,754.24 and 98,090.72 is: 135,338.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,549.12 : 218,754.24 = 98,090.72 : x
  2. Step 2: Convert to fraction form
    158,549.12/218,754.24 = 98,090.72/x
  3. Step 3: Cross multiply
    158,549.12x = 218,754.24 × 98,090.72
  4. Step 4: Simplify right side
    158,549.12x = 21,457,760,904.65
  5. Step 5: Solve for x
    x = 21,457,760,904.65/158,549.12
  6. Step 6: Final answer
    x = 135,338.25

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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.