Home / 220,870.40-331,305.60-73,126.40

Finding the Fourth Proportional to 220,870.40, 331,305.60 and 73,126.40

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Solution

The fourth proportional to 220,870.40, 331,305.60 and 73,126.40 is: 109,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,870.40 : 331,305.60 = 73,126.40 : x
  2. Step 2: Convert to fraction form
    220,870.40/331,305.60 = 73,126.40/x
  3. Step 3: Cross multiply
    220,870.40x = 331,305.60 × 73,126.40
  4. Step 4: Simplify right side
    220,870.40x = 24,227,185,827.84
  5. Step 5: Solve for x
    x = 24,227,185,827.84/220,870.40
  6. Step 6: Final answer
    x = 109,689.60

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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.