Home / 156,972.08-216,615.50-85,352.16

Finding the Fourth Proportional to 156,972.08, 216,615.50 and 85,352.16

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Solution

The fourth proportional to 156,972.08, 216,615.50 and 85,352.16 is: 117,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.08 : 216,615.50 = 85,352.16 : x
  2. Step 2: Convert to fraction form
    156,972.08/216,615.50 = 85,352.16/x
  3. Step 3: Cross multiply
    156,972.08x = 216,615.50 × 85,352.16
  4. Step 4: Simplify right side
    156,972.08x = 18,488,600,814.48
  5. Step 5: Solve for x
    x = 18,488,600,814.48/156,972.08
  6. Step 6: Final answer
    x = 117,782.73

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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.