Home / 209,136.16-288,584.48-118,472.71

Finding the Fourth Proportional to 209,136.16, 288,584.48 and 118,472.71

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Solution

The fourth proportional to 209,136.16, 288,584.48 and 118,472.71 is: 163,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,136.16 : 288,584.48 = 118,472.71 : x
  2. Step 2: Convert to fraction form
    209,136.16/288,584.48 = 118,472.71/x
  3. Step 3: Cross multiply
    209,136.16x = 288,584.48 × 118,472.71
  4. Step 4: Simplify right side
    209,136.16x = 34,189,385,409.54
  5. Step 5: Solve for x
    x = 34,189,385,409.54/209,136.16
  6. Step 6: Final answer
    x = 163,479.07

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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.