Home / 149,528.16-206,341.92-85,821.12

Finding the Fourth Proportional to 149,528.16, 206,341.92 and 85,821.12

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Solution

The fourth proportional to 149,528.16, 206,341.92 and 85,821.12 is: 118,429.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,528.16 : 206,341.92 = 85,821.12 : x
  2. Step 2: Convert to fraction form
    149,528.16/206,341.92 = 85,821.12/x
  3. Step 3: Cross multiply
    149,528.16x = 206,341.92 × 85,821.12
  4. Step 4: Simplify right side
    149,528.16x = 17,708,494,677.35
  5. Step 5: Solve for x
    x = 17,708,494,677.35/149,528.16
  6. Step 6: Final answer
    x = 118,429.16

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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.