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Finding the Fourth Proportional to 145,167.50, 217,764.99 and 56,427.86

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Solution

The fourth proportional to 145,167.50, 217,764.99 and 56,427.86 is: 84,647.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.50 : 217,764.99 = 56,427.86 : x
  2. Step 2: Convert to fraction form
    145,167.50/217,764.99 = 56,427.86/x
  3. Step 3: Cross multiply
    145,167.50x = 217,764.99 × 56,427.86
  4. Step 4: Simplify right side
    145,167.50x = 12,288,012,368.62
  5. Step 5: Solve for x
    x = 12,288,012,368.62/145,167.50
  6. Step 6: Final answer
    x = 84,647.13

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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.