Home / 145,392.30-217,999.15-56,542.25

Finding the Fourth Proportional to 145,392.30, 217,999.15 and 56,542.25

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Solution

The fourth proportional to 145,392.30, 217,999.15 and 56,542.25 is: 84,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,392.30 : 217,999.15 = 56,542.25 : x
  2. Step 2: Convert to fraction form
    145,392.30/217,999.15 = 56,542.25/x
  3. Step 3: Cross multiply
    145,392.30x = 217,999.15 × 56,542.25
  4. Step 4: Simplify right side
    145,392.30x = 12,326,162,842.73
  5. Step 5: Solve for x
    x = 12,326,162,842.73/145,392.30
  6. Step 6: Final answer
    x = 84,778.65

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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.