Home / 101,426.45-151,848.08-90,928.85

Finding the Fourth Proportional to 101,426.45, 151,848.08 and 90,928.85

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Solution

The fourth proportional to 101,426.45, 151,848.08 and 90,928.85 is: 136,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,426.45 : 151,848.08 = 90,928.85 : x
  2. Step 2: Convert to fraction form
    101,426.45/151,848.08 = 90,928.85/x
  3. Step 3: Cross multiply
    101,426.45x = 151,848.08 × 90,928.85
  4. Step 4: Simplify right side
    101,426.45x = 13,807,370,834.46
  5. Step 5: Solve for x
    x = 13,807,370,834.46/101,426.45
  6. Step 6: Final answer
    x = 136,131.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.