Home / 156,136.78-234,037.43-67,432.06

Finding the Fourth Proportional to 156,136.78, 234,037.43 and 67,432.06

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Solution

The fourth proportional to 156,136.78, 234,037.43 and 67,432.06 is: 101,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,136.78 : 234,037.43 = 67,432.06 : x
  2. Step 2: Convert to fraction form
    156,136.78/234,037.43 = 67,432.06/x
  3. Step 3: Cross multiply
    156,136.78x = 234,037.43 × 67,432.06
  4. Step 4: Simplify right side
    156,136.78x = 15,781,624,514.66
  5. Step 5: Solve for x
    x = 15,781,624,514.66/156,136.78
  6. Step 6: Final answer
    x = 101,075.64

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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.