Home / 156,646.89-216,166.92-85,025.40

Finding the Fourth Proportional to 156,646.89, 216,166.92 and 85,025.40

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Solution

The fourth proportional to 156,646.89, 216,166.92 and 85,025.40 is: 117,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,646.89 : 216,166.92 = 85,025.40 : x
  2. Step 2: Convert to fraction form
    156,646.89/216,166.92 = 85,025.40/x
  3. Step 3: Cross multiply
    156,646.89x = 216,166.92 × 85,025.40
  4. Step 4: Simplify right side
    156,646.89x = 18,379,678,839.77
  5. Step 5: Solve for x
    x = 18,379,678,839.77/156,646.89
  6. Step 6: Final answer
    x = 117,331.91

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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.