Home / 156,178.49-215,526.03-84,558.50

Finding the Fourth Proportional to 156,178.49, 215,526.03 and 84,558.50

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Solution

The fourth proportional to 156,178.49, 215,526.03 and 84,558.50 is: 116,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,178.49 : 215,526.03 = 84,558.50 : x
  2. Step 2: Convert to fraction form
    156,178.49/215,526.03 = 84,558.50/x
  3. Step 3: Cross multiply
    156,178.49x = 215,526.03 × 84,558.50
  4. Step 4: Simplify right side
    156,178.49x = 18,224,557,807.76
  5. Step 5: Solve for x
    x = 18,224,557,807.76/156,178.49
  6. Step 6: Final answer
    x = 116,690.58

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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.