Home / 177,721.98-245,283.03-102,255.90

Finding the Fourth Proportional to 177,721.98, 245,283.03 and 102,255.90

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Solution

The fourth proportional to 177,721.98, 245,283.03 and 102,255.90 is: 141,128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,721.98 : 245,283.03 = 102,255.90 : x
  2. Step 2: Convert to fraction form
    177,721.98/245,283.03 = 102,255.90/x
  3. Step 3: Cross multiply
    177,721.98x = 245,283.03 × 102,255.90
  4. Step 4: Simplify right side
    177,721.98x = 25,081,636,987.38
  5. Step 5: Solve for x
    x = 25,081,636,987.38/177,721.98
  6. Step 6: Final answer
    x = 141,128.50

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1.5x scale

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.