Home / 140,358.45-210,604.08-72,854.61

Finding the Fourth Proportional to 140,358.45, 210,604.08 and 72,854.61

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Solution

The fourth proportional to 140,358.45, 210,604.08 and 72,854.61 is: 109,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,358.45 : 210,604.08 = 72,854.61 : x
  2. Step 2: Convert to fraction form
    140,358.45/210,604.08 = 72,854.61/x
  3. Step 3: Cross multiply
    140,358.45x = 210,604.08 × 72,854.61
  4. Step 4: Simplify right side
    140,358.45x = 15,343,477,425.78
  5. Step 5: Solve for x
    x = 15,343,477,425.78/140,358.45
  6. Step 6: Final answer
    x = 109,316.38

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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.