Home / 156,628.94-216,142.44-85,007.52

Finding the Fourth Proportional to 156,628.94, 216,142.44 and 85,007.52

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Solution

The fourth proportional to 156,628.94, 216,142.44 and 85,007.52 is: 117,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.94 : 216,142.44 = 85,007.52 : x
  2. Step 2: Convert to fraction form
    156,628.94/216,142.44 = 85,007.52/x
  3. Step 3: Cross multiply
    156,628.94x = 216,142.44 × 85,007.52
  4. Step 4: Simplify right side
    156,628.94x = 18,373,732,791.15
  5. Step 5: Solve for x
    x = 18,373,732,791.15/156,628.94
  6. Step 6: Final answer
    x = 117,307.40

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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.