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Finding the Fourth Proportional to 174,321.71, 261,622.70 and 90,106.57

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Solution

The fourth proportional to 174,321.71, 261,622.70 and 90,106.57 is: 135,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,321.71 : 261,622.70 = 90,106.57 : x
  2. Step 2: Convert to fraction form
    174,321.71/261,622.70 = 90,106.57/x
  3. Step 3: Cross multiply
    174,321.71x = 261,622.70 × 90,106.57
  4. Step 4: Simplify right side
    174,321.71x = 23,573,925,010.46
  5. Step 5: Solve for x
    x = 23,573,925,010.46/174,321.71
  6. Step 6: Final answer
    x = 135,232.30

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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.