Home / 140,478.12-210,702.60-40,653.72

Finding the Fourth Proportional to 140,478.12, 210,702.60 and 40,653.72

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Solution

The fourth proportional to 140,478.12, 210,702.60 and 40,653.72 is: 60,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,478.12 : 210,702.60 = 40,653.72 : x
  2. Step 2: Convert to fraction form
    140,478.12/210,702.60 = 40,653.72/x
  3. Step 3: Cross multiply
    140,478.12x = 210,702.60 × 40,653.72
  4. Step 4: Simplify right side
    140,478.12x = 8,565,844,503.67
  5. Step 5: Solve for x
    x = 8,565,844,503.67/140,478.12
  6. Step 6: Final answer
    x = 60,976.36

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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.