Home / 145,469.36-218,203.86-45,638.30

Finding the Fourth Proportional to 145,469.36, 218,203.86 and 45,638.30

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Solution

The fourth proportional to 145,469.36, 218,203.86 and 45,638.30 is: 68,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,469.36 : 218,203.86 = 45,638.30 : x
  2. Step 2: Convert to fraction form
    145,469.36/218,203.86 = 45,638.30/x
  3. Step 3: Cross multiply
    145,469.36x = 218,203.86 × 45,638.30
  4. Step 4: Simplify right side
    145,469.36x = 9,958,453,223.84
  5. Step 5: Solve for x
    x = 9,958,453,223.84/145,469.36
  6. Step 6: Final answer
    x = 68,457.39

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1.5x scale

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.