Home / 104,530.80-156,796.21-45,365.16

Finding the Fourth Proportional to 104,530.80, 156,796.21 and 45,365.16

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Solution

The fourth proportional to 104,530.80, 156,796.21 and 45,365.16 is: 68,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,530.80 : 156,796.21 = 45,365.16 : x
  2. Step 2: Convert to fraction form
    104,530.80/156,796.21 = 45,365.16/x
  3. Step 3: Cross multiply
    104,530.80x = 156,796.21 × 45,365.16
  4. Step 4: Simplify right side
    104,530.80x = 7,113,085,154.04
  5. Step 5: Solve for x
    x = 7,113,085,154.04/104,530.80
  6. Step 6: Final answer
    x = 68,047.74

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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.