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Finding the Fourth Proportional to 149,046.76, 205,580.40 and 101,217.04

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Solution

The fourth proportional to 149,046.76, 205,580.40 and 101,217.04 is: 139,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,046.76 : 205,580.40 = 101,217.04 : x
  2. Step 2: Convert to fraction form
    149,046.76/205,580.40 = 101,217.04/x
  3. Step 3: Cross multiply
    149,046.76x = 205,580.40 × 101,217.04
  4. Step 4: Simplify right side
    149,046.76x = 20,808,239,570.02
  5. Step 5: Solve for x
    x = 20,808,239,570.02/149,046.76
  6. Step 6: Final answer
    x = 139,608.80

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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.