Home / 100,136.24-138,178.56-59,841.98

Finding the Fourth Proportional to 100,136.24, 138,178.56 and 59,841.98

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Solution

The fourth proportional to 100,136.24, 138,178.56 and 59,841.98 is: 82,576.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,136.24 : 138,178.56 = 59,841.98 : x
  2. Step 2: Convert to fraction form
    100,136.24/138,178.56 = 59,841.98/x
  3. Step 3: Cross multiply
    100,136.24x = 138,178.56 × 59,841.98
  4. Step 4: Simplify right side
    100,136.24x = 8,268,878,623.95
  5. Step 5: Solve for x
    x = 8,268,878,623.95/100,136.24
  6. Step 6: Final answer
    x = 82,576.28

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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.