Home / 156,730.80-216,287.84-85,110.24

Finding the Fourth Proportional to 156,730.80, 216,287.84 and 85,110.24

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Solution

The fourth proportional to 156,730.80, 216,287.84 and 85,110.24 is: 117,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.80 : 216,287.84 = 85,110.24 : x
  2. Step 2: Convert to fraction form
    156,730.80/216,287.84 = 85,110.24/x
  3. Step 3: Cross multiply
    156,730.80x = 216,287.84 × 85,110.24
  4. Step 4: Simplify right side
    156,730.80x = 18,408,309,971.48
  5. Step 5: Solve for x
    x = 18,408,309,971.48/156,730.80
  6. Step 6: Final answer
    x = 117,451.77

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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.