Home / 104,621.12-156,931.72-42,335.36

Finding the Fourth Proportional to 104,621.12, 156,931.72 and 42,335.36

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Solution

The fourth proportional to 104,621.12, 156,931.72 and 42,335.36 is: 63,503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,621.12 : 156,931.72 = 42,335.36 : x
  2. Step 2: Convert to fraction form
    104,621.12/156,931.72 = 42,335.36/x
  3. Step 3: Cross multiply
    104,621.12x = 156,931.72 × 42,335.36
  4. Step 4: Simplify right side
    104,621.12x = 6,643,760,861.62
  5. Step 5: Solve for x
    x = 6,643,760,861.62/104,621.12
  6. Step 6: Final answer
    x = 63,503.06

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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.