Home / 156,132.09-215,372.35-93,999.32

Finding the Fourth Proportional to 156,132.09, 215,372.35 and 93,999.32

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Solution

The fourth proportional to 156,132.09, 215,372.35 and 93,999.32 is: 129,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,132.09 : 215,372.35 = 93,999.32 : x
  2. Step 2: Convert to fraction form
    156,132.09/215,372.35 = 93,999.32/x
  3. Step 3: Cross multiply
    156,132.09x = 215,372.35 × 93,999.32
  4. Step 4: Simplify right side
    156,132.09x = 20,244,854,977.81
  5. Step 5: Solve for x
    x = 20,244,854,977.81/156,132.09
  6. Step 6: Final answer
    x = 129,664.92

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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.