Home / 145,439.08-218,200.38-120,362.92

Finding the Fourth Proportional to 145,439.08, 218,200.38 and 120,362.92

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Solution

The fourth proportional to 145,439.08, 218,200.38 and 120,362.92 is: 180,578.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,439.08 : 218,200.38 = 120,362.92 : x
  2. Step 2: Convert to fraction form
    145,439.08/218,200.38 = 120,362.92/x
  3. Step 3: Cross multiply
    145,439.08x = 218,200.38 × 120,362.92
  4. Step 4: Simplify right side
    145,439.08x = 26,263,234,881.91
  5. Step 5: Solve for x
    x = 26,263,234,881.91/145,439.08
  6. Step 6: Final answer
    x = 180,578.94

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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.