Home / 118,760.49-177,248.78-102,678.89

Finding the Fourth Proportional to 118,760.49, 177,248.78 and 102,678.89

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Solution

The fourth proportional to 118,760.49, 177,248.78 and 102,678.89 is: 153,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,760.49 : 177,248.78 = 102,678.89 : x
  2. Step 2: Convert to fraction form
    118,760.49/177,248.78 = 102,678.89/x
  3. Step 3: Cross multiply
    118,760.49x = 177,248.78 × 102,678.89
  4. Step 4: Simplify right side
    118,760.49x = 18,199,706,584.62
  5. Step 5: Solve for x
    x = 18,199,706,584.62/118,760.49
  6. Step 6: Final answer
    x = 153,247.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.