Home / 140,737.28-211,057.20-40,870.40

Finding the Fourth Proportional to 140,737.28, 211,057.20 and 40,870.40

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Solution

The fourth proportional to 140,737.28, 211,057.20 and 40,870.40 is: 61,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,737.28 : 211,057.20 = 40,870.40 : x
  2. Step 2: Convert to fraction form
    140,737.28/211,057.20 = 40,870.40/x
  3. Step 3: Cross multiply
    140,737.28x = 211,057.20 × 40,870.40
  4. Step 4: Simplify right side
    140,737.28x = 8,625,992,186.88
  5. Step 5: Solve for x
    x = 8,625,992,186.88/140,737.28
  6. Step 6: Final answer
    x = 61,291.45

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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.