Home / 158,633.31-218,920.10-87,016.35

Finding the Fourth Proportional to 158,633.31, 218,920.10 and 87,016.35

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Solution

The fourth proportional to 158,633.31, 218,920.10 and 87,016.35 is: 120,085.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,633.31 : 218,920.10 = 87,016.35 : x
  2. Step 2: Convert to fraction form
    158,633.31/218,920.10 = 87,016.35/x
  3. Step 3: Cross multiply
    158,633.31x = 218,920.10 × 87,016.35
  4. Step 4: Simplify right side
    158,633.31x = 19,049,628,043.64
  5. Step 5: Solve for x
    x = 19,049,628,043.64/158,633.31
  6. Step 6: Final answer
    x = 120,085.93

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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.