Home / 140,639.11-210,925.85-40,772.50

Finding the Fourth Proportional to 140,639.11, 210,925.85 and 40,772.50

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Solution

The fourth proportional to 140,639.11, 210,925.85 and 40,772.50 is: 61,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,639.11 : 210,925.85 = 40,772.50 : x
  2. Step 2: Convert to fraction form
    140,639.11/210,925.85 = 40,772.50/x
  3. Step 3: Cross multiply
    140,639.11x = 210,925.85 × 40,772.50
  4. Step 4: Simplify right side
    140,639.11x = 8,599,973,487.95
  5. Step 5: Solve for x
    x = 8,599,973,487.95/140,639.11
  6. Step 6: Final answer
    x = 61,149.23

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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.