Home / 156,110.40-215,432.10-84,490.38

Finding the Fourth Proportional to 156,110.40, 215,432.10 and 84,490.38

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Solution

The fourth proportional to 156,110.40, 215,432.10 and 84,490.38 is: 116,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,110.40 : 215,432.10 = 84,490.38 : x
  2. Step 2: Convert to fraction form
    156,110.40/215,432.10 = 84,490.38/x
  3. Step 3: Cross multiply
    156,110.40x = 215,432.10 × 84,490.38
  4. Step 4: Simplify right side
    156,110.40x = 18,201,939,993.20
  5. Step 5: Solve for x
    x = 18,201,939,993.20/156,110.40
  6. Step 6: Final answer
    x = 116,596.59

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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.