Home / 156,682.64-234,963.98-66,669.05

Finding the Fourth Proportional to 156,682.64, 234,963.98 and 66,669.05

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Solution

The fourth proportional to 156,682.64, 234,963.98 and 66,669.05 is: 99,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,682.64 : 234,963.98 = 66,669.05 : x
  2. Step 2: Convert to fraction form
    156,682.64/234,963.98 = 66,669.05/x
  3. Step 3: Cross multiply
    156,682.64x = 234,963.98 × 66,669.05
  4. Step 4: Simplify right side
    156,682.64x = 15,664,825,502.19
  5. Step 5: Solve for x
    x = 15,664,825,502.19/156,682.64
  6. Step 6: Final answer
    x = 99,978.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.