Home / 145,183.92-200,385.48-104,456.88

Finding the Fourth Proportional to 145,183.92, 200,385.48 and 104,456.88

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Solution

The fourth proportional to 145,183.92, 200,385.48 and 104,456.88 is: 144,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,183.92 : 200,385.48 = 104,456.88 : x
  2. Step 2: Convert to fraction form
    145,183.92/200,385.48 = 104,456.88/x
  3. Step 3: Cross multiply
    145,183.92x = 200,385.48 × 104,456.88
  4. Step 4: Simplify right side
    145,183.92x = 20,931,642,038.10
  5. Step 5: Solve for x
    x = 20,931,642,038.10/145,183.92
  6. Step 6: Final answer
    x = 144,173.28

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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.