Home / 140,360.70-210,607.46-72,856.86

Finding the Fourth Proportional to 140,360.70, 210,607.46 and 72,856.86

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Solution

The fourth proportional to 140,360.70, 210,607.46 and 72,856.86 is: 109,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,360.70 : 210,607.46 = 72,856.86 : x
  2. Step 2: Convert to fraction form
    140,360.70/210,607.46 = 72,856.86/x
  3. Step 3: Cross multiply
    140,360.70x = 210,607.46 × 72,856.86
  4. Step 4: Simplify right side
    140,360.70x = 15,344,197,863.89
  5. Step 5: Solve for x
    x = 15,344,197,863.89/140,360.70
  6. Step 6: Final answer
    x = 109,319.76

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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.