Home / 238,161.45-357,166.88-78,211.02

Finding the Fourth Proportional to 238,161.45, 357,166.88 and 78,211.02

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Solution

The fourth proportional to 238,161.45, 357,166.88 and 78,211.02 is: 117,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,161.45 : 357,166.88 = 78,211.02 : x
  2. Step 2: Convert to fraction form
    238,161.45/357,166.88 = 78,211.02/x
  3. Step 3: Cross multiply
    238,161.45x = 357,166.88 × 78,211.02
  4. Step 4: Simplify right side
    238,161.45x = 27,934,385,995.02
  5. Step 5: Solve for x
    x = 27,934,385,995.02/238,161.45
  6. Step 6: Final answer
    x = 117,291.80

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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.