Home / 153,821.26-212,272.94-85,834.18

Finding the Fourth Proportional to 153,821.26, 212,272.94 and 85,834.18

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Solution

The fourth proportional to 153,821.26, 212,272.94 and 85,834.18 is: 118,450.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,821.26 : 212,272.94 = 85,834.18 : x
  2. Step 2: Convert to fraction form
    153,821.26/212,272.94 = 85,834.18/x
  3. Step 3: Cross multiply
    153,821.26x = 212,272.94 × 85,834.18
  4. Step 4: Simplify right side
    153,821.26x = 18,220,272,250.55
  5. Step 5: Solve for x
    x = 18,220,272,250.55/153,821.26
  6. Step 6: Final answer
    x = 118,450.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.