Home / 145,540.80-218,221.56-56,690.82

Finding the Fourth Proportional to 145,540.80, 218,221.56 and 56,690.82

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Solution

The fourth proportional to 145,540.80, 218,221.56 and 56,690.82 is: 85,001.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,540.80 : 218,221.56 = 56,690.82 : x
  2. Step 2: Convert to fraction form
    145,540.80/218,221.56 = 56,690.82/x
  3. Step 3: Cross multiply
    145,540.80x = 218,221.56 × 56,690.82
  4. Step 4: Simplify right side
    145,540.80x = 12,371,159,178.08
  5. Step 5: Solve for x
    x = 12,371,159,178.08/145,540.80
  6. Step 6: Final answer
    x = 85,001.31

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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.