Home / 145,199.25-200,374.98-81,537.09

Finding the Fourth Proportional to 145,199.25, 200,374.98 and 81,537.09

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Solution

The fourth proportional to 145,199.25, 200,374.98 and 81,537.09 is: 112,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,199.25 : 200,374.98 = 81,537.09 : x
  2. Step 2: Convert to fraction form
    145,199.25/200,374.98 = 81,537.09/x
  3. Step 3: Cross multiply
    145,199.25x = 200,374.98 × 81,537.09
  4. Step 4: Simplify right side
    145,199.25x = 16,337,992,778.01
  5. Step 5: Solve for x
    x = 16,337,992,778.01/145,199.25
  6. Step 6: Final answer
    x = 112,521.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.