Home / 122,117.40-183,176.10-90,624.60

Finding the Fourth Proportional to 122,117.40, 183,176.10 and 90,624.60

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Solution

The fourth proportional to 122,117.40, 183,176.10 and 90,624.60 is: 135,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117.40 : 183,176.10 = 90,624.60 : x
  2. Step 2: Convert to fraction form
    122,117.40/183,176.10 = 90,624.60/x
  3. Step 3: Cross multiply
    122,117.40x = 183,176.10 × 90,624.60
  4. Step 4: Simplify right side
    122,117.40x = 16,600,260,792.06
  5. Step 5: Solve for x
    x = 16,600,260,792.06/122,117.40
  6. Step 6: Final answer
    x = 135,936.90

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1.5x scale

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.