Home / 140,558.12-210,690.30-61,605.80

Finding the Fourth Proportional to 140,558.12, 210,690.30 and 61,605.80

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Solution

The fourth proportional to 140,558.12, 210,690.30 and 61,605.80 is: 92,344.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,558.12 : 210,690.30 = 61,605.80 : x
  2. Step 2: Convert to fraction form
    140,558.12/210,690.30 = 61,605.80/x
  3. Step 3: Cross multiply
    140,558.12x = 210,690.30 × 61,605.80
  4. Step 4: Simplify right side
    140,558.12x = 12,979,744,483.74
  5. Step 5: Solve for x
    x = 12,979,744,483.74/140,558.12
  6. Step 6: Final answer
    x = 92,344.32

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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.