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Finding the Fourth Proportional to 145,656.75, 218,537.37 and 56,973.90

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Solution

The fourth proportional to 145,656.75, 218,537.37 and 56,973.90 is: 85,481.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,656.75 : 218,537.37 = 56,973.90 : x
  2. Step 2: Convert to fraction form
    145,656.75/218,537.37 = 56,973.90/x
  3. Step 3: Cross multiply
    145,656.75x = 218,537.37 × 56,973.90
  4. Step 4: Simplify right side
    145,656.75x = 12,450,926,264.64
  5. Step 5: Solve for x
    x = 12,450,926,264.64/145,656.75
  6. Step 6: Final answer
    x = 85,481.29

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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.