Home / 156,945.10-216,585.60-85,325.17

Finding the Fourth Proportional to 156,945.10, 216,585.60 and 85,325.17

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Solution

The fourth proportional to 156,945.10, 216,585.60 and 85,325.17 is: 117,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,945.10 : 216,585.60 = 85,325.17 : x
  2. Step 2: Convert to fraction form
    156,945.10/216,585.60 = 85,325.17/x
  3. Step 3: Cross multiply
    156,945.10x = 216,585.60 × 85,325.17
  4. Step 4: Simplify right side
    156,945.10x = 18,480,203,139.55
  5. Step 5: Solve for x
    x = 18,480,203,139.55/156,945.10
  6. Step 6: Final answer
    x = 117,749.48

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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.