Home / 209,136.38-288,584.78-118,472.93

Finding the Fourth Proportional to 209,136.38, 288,584.78 and 118,472.93

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Solution

The fourth proportional to 209,136.38, 288,584.78 and 118,472.93 is: 163,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,136.38 : 288,584.78 = 118,472.93 : x
  2. Step 2: Convert to fraction form
    209,136.38/288,584.78 = 118,472.93/x
  3. Step 3: Cross multiply
    209,136.38x = 288,584.78 × 118,472.93
  4. Step 4: Simplify right side
    209,136.38x = 34,189,484,440.01
  5. Step 5: Solve for x
    x = 34,189,484,440.01/209,136.38
  6. Step 6: Final answer
    x = 163,479.37

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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.