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Finding the Fourth Proportional to 156,963.42, 216,692.28 and 125,999.55

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Solution

The fourth proportional to 156,963.42, 216,692.28 and 125,999.55 is: 173,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.42 : 216,692.28 = 125,999.55 : x
  2. Step 2: Convert to fraction form
    156,963.42/216,692.28 = 125,999.55/x
  3. Step 3: Cross multiply
    156,963.42x = 216,692.28 × 125,999.55
  4. Step 4: Simplify right side
    156,963.42x = 27,303,129,768.47
  5. Step 5: Solve for x
    x = 27,303,129,768.47/156,963.42
  6. Step 6: Final answer
    x = 173,945.81

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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.