Home / 100,153.20-138,202.04-59,858.96

Finding the Fourth Proportional to 100,153.20, 138,202.04 and 59,858.96

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Solution

The fourth proportional to 100,153.20, 138,202.04 and 59,858.96 is: 82,599.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,153.20 : 138,202.04 = 59,858.96 : x
  2. Step 2: Convert to fraction form
    100,153.20/138,202.04 = 59,858.96/x
  3. Step 3: Cross multiply
    100,153.20x = 138,202.04 × 59,858.96
  4. Step 4: Simplify right side
    100,153.20x = 8,272,630,384.28
  5. Step 5: Solve for x
    x = 8,272,630,384.28/100,153.20
  6. Step 6: Final answer
    x = 82,599.76

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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.