Home / 156,930.04-216,558.90-85,308.22

Finding the Fourth Proportional to 156,930.04, 216,558.90 and 85,308.22

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Solution

The fourth proportional to 156,930.04, 216,558.90 and 85,308.22 is: 117,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.04 : 216,558.90 = 85,308.22 : x
  2. Step 2: Convert to fraction form
    156,930.04/216,558.90 = 85,308.22/x
  3. Step 3: Cross multiply
    156,930.04x = 216,558.90 × 85,308.22
  4. Step 4: Simplify right side
    156,930.04x = 18,474,254,284.16
  5. Step 5: Solve for x
    x = 18,474,254,284.16/156,930.04
  6. Step 6: Final answer
    x = 117,722.87

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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.