Home / 158,141.72-218,248.44-90,179.84

Finding the Fourth Proportional to 158,141.72, 218,248.44 and 90,179.84

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Solution

The fourth proportional to 158,141.72, 218,248.44 and 90,179.84 is: 124,455.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,141.72 : 218,248.44 = 90,179.84 : x
  2. Step 2: Convert to fraction form
    158,141.72/218,248.44 = 90,179.84/x
  3. Step 3: Cross multiply
    158,141.72x = 218,248.44 × 90,179.84
  4. Step 4: Simplify right side
    158,141.72x = 19,681,609,399.45
  5. Step 5: Solve for x
    x = 19,681,609,399.45/158,141.72
  6. Step 6: Final answer
    x = 124,455.52

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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.