Home / 140,306.40-210,321.06-56,015.78

Finding the Fourth Proportional to 140,306.40, 210,321.06 and 56,015.78

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Solution

The fourth proportional to 140,306.40, 210,321.06 and 56,015.78 is: 83,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,306.40 : 210,321.06 = 56,015.78 : x
  2. Step 2: Convert to fraction form
    140,306.40/210,321.06 = 56,015.78/x
  3. Step 3: Cross multiply
    140,306.40x = 210,321.06 × 56,015.78
  4. Step 4: Simplify right side
    140,306.40x = 11,781,298,226.33
  5. Step 5: Solve for x
    x = 11,781,298,226.33/140,306.40
  6. Step 6: Final answer
    x = 83,968.36

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1.5x scale

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.