Home / 145,225.26-217,706.67-100,872.90

Finding the Fourth Proportional to 145,225.26, 217,706.67 and 100,872.90

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Solution

The fourth proportional to 145,225.26, 217,706.67 and 100,872.90 is: 151,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,225.26 : 217,706.67 = 100,872.90 : x
  2. Step 2: Convert to fraction form
    145,225.26/217,706.67 = 100,872.90/x
  3. Step 3: Cross multiply
    145,225.26x = 217,706.67 × 100,872.90
  4. Step 4: Simplify right side
    145,225.26x = 21,960,703,152.24
  5. Step 5: Solve for x
    x = 21,960,703,152.24/145,225.26
  6. Step 6: Final answer
    x = 151,218.21

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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.