Home / 145,249.35-217,874.03-66,517.35

Finding the Fourth Proportional to 145,249.35, 217,874.03 and 66,517.35

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Solution

The fourth proportional to 145,249.35, 217,874.03 and 66,517.35 is: 99,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,249.35 : 217,874.03 = 66,517.35 : x
  2. Step 2: Convert to fraction form
    145,249.35/217,874.03 = 66,517.35/x
  3. Step 3: Cross multiply
    145,249.35x = 217,874.03 × 66,517.35
  4. Step 4: Simplify right side
    145,249.35x = 14,492,402,776.83
  5. Step 5: Solve for x
    x = 14,492,402,776.83/145,249.35
  6. Step 6: Final answer
    x = 99,776.03

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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.