Home / 145,211.67-200,370.42-81,537.15

Finding the Fourth Proportional to 145,211.67, 200,370.42 and 81,537.15

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Solution

The fourth proportional to 145,211.67, 200,370.42 and 81,537.15 is: 112,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,211.67 : 200,370.42 = 81,537.15 : x
  2. Step 2: Convert to fraction form
    145,211.67/200,370.42 = 81,537.15/x
  3. Step 3: Cross multiply
    145,211.67x = 200,370.42 × 81,537.15
  4. Step 4: Simplify right side
    145,211.67x = 16,337,632,991.10
  5. Step 5: Solve for x
    x = 16,337,632,991.10/145,211.67
  6. Step 6: Final answer
    x = 112,509.09

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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.