Home / 158,633.70-218,910.56-90,646.36

Finding the Fourth Proportional to 158,633.70, 218,910.56 and 90,646.36

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Solution

The fourth proportional to 158,633.70, 218,910.56 and 90,646.36 is: 125,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,633.70 : 218,910.56 = 90,646.36 : x
  2. Step 2: Convert to fraction form
    158,633.70/218,910.56 = 90,646.36/x
  3. Step 3: Cross multiply
    158,633.70x = 218,910.56 × 90,646.36
  4. Step 4: Simplify right side
    158,633.70x = 19,843,445,429.56
  5. Step 5: Solve for x
    x = 19,843,445,429.56/158,633.70
  6. Step 6: Final answer
    x = 125,089.72

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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.