Home / 191,528.24-287,344.20-66,878.96

Finding the Fourth Proportional to 191,528.24, 287,344.20 and 66,878.96

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Solution

The fourth proportional to 191,528.24, 287,344.20 and 66,878.96 is: 100,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,528.24 : 287,344.20 = 66,878.96 : x
  2. Step 2: Convert to fraction form
    191,528.24/287,344.20 = 66,878.96/x
  3. Step 3: Cross multiply
    191,528.24x = 287,344.20 × 66,878.96
  4. Step 4: Simplify right side
    191,528.24x = 19,217,281,258.03
  5. Step 5: Solve for x
    x = 19,217,281,258.03/191,528.24
  6. Step 6: Final answer
    x = 100,336.54

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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.