Home / 113,144.07-156,166.88-65,390.52

Finding the Fourth Proportional to 113,144.07, 156,166.88 and 65,390.52

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Solution

The fourth proportional to 113,144.07, 156,166.88 and 65,390.52 is: 90,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,144.07 : 156,166.88 = 65,390.52 : x
  2. Step 2: Convert to fraction form
    113,144.07/156,166.88 = 65,390.52/x
  3. Step 3: Cross multiply
    113,144.07x = 156,166.88 × 65,390.52
  4. Step 4: Simplify right side
    113,144.07x = 10,211,833,163.03
  5. Step 5: Solve for x
    x = 10,211,833,163.03/113,144.07
  6. Step 6: Final answer
    x = 90,255.13

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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.