Home / 145,145.06-217,725.70-45,319.04

Finding the Fourth Proportional to 145,145.06, 217,725.70 and 45,319.04

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Solution

The fourth proportional to 145,145.06, 217,725.70 and 45,319.04 is: 67,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,145.06 : 217,725.70 = 45,319.04 : x
  2. Step 2: Convert to fraction form
    145,145.06/217,725.70 = 45,319.04/x
  3. Step 3: Cross multiply
    145,145.06x = 217,725.70 × 45,319.04
  4. Step 4: Simplify right side
    145,145.06x = 9,867,119,707.33
  5. Step 5: Solve for x
    x = 9,867,119,707.33/145,145.06
  6. Step 6: Final answer
    x = 67,981.09

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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.