Home / 156,433.19-215,877.90-84,813.50

Finding the Fourth Proportional to 156,433.19, 215,877.90 and 84,813.50

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Solution

The fourth proportional to 156,433.19, 215,877.90 and 84,813.50 is: 117,042.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,433.19 : 215,877.90 = 84,813.50 : x
  2. Step 2: Convert to fraction form
    156,433.19/215,877.90 = 84,813.50/x
  3. Step 3: Cross multiply
    156,433.19x = 215,877.90 × 84,813.50
  4. Step 4: Simplify right side
    156,433.19x = 18,309,359,192.26
  5. Step 5: Solve for x
    x = 18,309,359,192.26/156,433.19
  6. Step 6: Final answer
    x = 117,042.68

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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.