Home / 156,178.53-215,526.51-84,558.60

Finding the Fourth Proportional to 156,178.53, 215,526.51 and 84,558.60

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Solution

The fourth proportional to 156,178.53, 215,526.51 and 84,558.60 is: 116,690.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,178.53 : 215,526.51 = 84,558.60 : x
  2. Step 2: Convert to fraction form
    156,178.53/215,526.51 = 84,558.60/x
  3. Step 3: Cross multiply
    156,178.53x = 215,526.51 × 84,558.60
  4. Step 4: Simplify right side
    156,178.53x = 18,224,619,948.49
  5. Step 5: Solve for x
    x = 18,224,619,948.49/156,178.53
  6. Step 6: Final answer
    x = 116,690.94

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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.