Home / 156,810.11-216,400.58-85,190.19

Finding the Fourth Proportional to 156,810.11, 216,400.58 and 85,190.19

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Solution

The fourth proportional to 156,810.11, 216,400.58 and 85,190.19 is: 117,563.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,810.11 : 216,400.58 = 85,190.19 : x
  2. Step 2: Convert to fraction form
    156,810.11/216,400.58 = 85,190.19/x
  3. Step 3: Cross multiply
    156,810.11x = 216,400.58 × 85,190.19
  4. Step 4: Simplify right side
    156,810.11x = 18,435,206,526.31
  5. Step 5: Solve for x
    x = 18,435,206,526.31/156,810.11
  6. Step 6: Final answer
    x = 117,563.89

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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.