Home / 243,184.50-364,778.37-76,972.50

Finding the Fourth Proportional to 243,184.50, 364,778.37 and 76,972.50

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Solution

The fourth proportional to 243,184.50, 364,778.37 and 76,972.50 is: 115,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,184.50 : 364,778.37 = 76,972.50 : x
  2. Step 2: Convert to fraction form
    243,184.50/364,778.37 = 76,972.50/x
  3. Step 3: Cross multiply
    243,184.50x = 364,778.37 × 76,972.50
  4. Step 4: Simplify right side
    243,184.50x = 28,077,903,084.83
  5. Step 5: Solve for x
    x = 28,077,903,084.83/243,184.50
  6. Step 6: Final answer
    x = 115,459.26

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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.