Home / 142,721.04-214,111.62-53,972.58

Finding the Fourth Proportional to 142,721.04, 214,111.62 and 53,972.58

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Solution

The fourth proportional to 142,721.04, 214,111.62 and 53,972.58 is: 80,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,721.04 : 214,111.62 = 53,972.58 : x
  2. Step 2: Convert to fraction form
    142,721.04/214,111.62 = 53,972.58/x
  3. Step 3: Cross multiply
    142,721.04x = 214,111.62 × 53,972.58
  4. Step 4: Simplify right side
    142,721.04x = 11,556,156,539.38
  5. Step 5: Solve for x
    x = 11,556,156,539.38/142,721.04
  6. Step 6: Final answer
    x = 80,970.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.