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Finding the Fourth Proportional to 156,594.70, 216,099.59 and 84,972.88

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Solution

The fourth proportional to 156,594.70, 216,099.59 and 84,972.88 is: 117,261.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,594.70 : 216,099.59 = 84,972.88 : x
  2. Step 2: Convert to fraction form
    156,594.70/216,099.59 = 84,972.88/x
  3. Step 3: Cross multiply
    156,594.70x = 216,099.59 × 84,972.88
  4. Step 4: Simplify right side
    156,594.70x = 18,362,604,529.12
  5. Step 5: Solve for x
    x = 18,362,604,529.12/156,594.70
  6. Step 6: Final answer
    x = 117,261.98

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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.