Home / 140,548.16-210,484.44-80,394.28

Finding the Fourth Proportional to 140,548.16, 210,484.44 and 80,394.28

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Solution

The fourth proportional to 140,548.16, 210,484.44 and 80,394.28 is: 120,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,548.16 : 210,484.44 = 80,394.28 : x
  2. Step 2: Convert to fraction form
    140,548.16/210,484.44 = 80,394.28/x
  3. Step 3: Cross multiply
    140,548.16x = 210,484.44 × 80,394.28
  4. Step 4: Simplify right side
    140,548.16x = 16,921,745,005.00
  5. Step 5: Solve for x
    x = 16,921,745,005.00/140,548.16
  6. Step 6: Final answer
    x = 120,398.20

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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.