Home / 208,738.89-288,074.15-118,095.21

Finding the Fourth Proportional to 208,738.89, 288,074.15 and 118,095.21

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Solution

The fourth proportional to 208,738.89, 288,074.15 and 118,095.21 is: 162,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,738.89 : 288,074.15 = 118,095.21 : x
  2. Step 2: Convert to fraction form
    208,738.89/288,074.15 = 118,095.21/x
  3. Step 3: Cross multiply
    208,738.89x = 288,074.15 × 118,095.21
  4. Step 4: Simplify right side
    208,738.89x = 34,020,176,649.35
  5. Step 5: Solve for x
    x = 34,020,176,649.35/208,738.89
  6. Step 6: Final answer
    x = 162,979.58

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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.