Home / 90,102.21-124,197.90-70,951.61

Finding the Fourth Proportional to 90,102.21, 124,197.90 and 70,951.61

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Solution

The fourth proportional to 90,102.21, 124,197.90 and 70,951.61 is: 97,800.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,102.21 : 124,197.90 = 70,951.61 : x
  2. Step 2: Convert to fraction form
    90,102.21/124,197.90 = 70,951.61/x
  3. Step 3: Cross multiply
    90,102.21x = 124,197.90 × 70,951.61
  4. Step 4: Simplify right side
    90,102.21x = 8,812,040,342.63
  5. Step 5: Solve for x
    x = 8,812,040,342.63/90,102.21
  6. Step 6: Final answer
    x = 97,800.49

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1.5x scale

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.