Home / 142,329.62-213,321.80-104,539.28

Finding the Fourth Proportional to 142,329.62, 213,321.80 and 104,539.28

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Solution

The fourth proportional to 142,329.62, 213,321.80 and 104,539.28 is: 156,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,329.62 : 213,321.80 = 104,539.28 : x
  2. Step 2: Convert to fraction form
    142,329.62/213,321.80 = 104,539.28/x
  3. Step 3: Cross multiply
    142,329.62x = 213,321.80 × 104,539.28
  4. Step 4: Simplify right side
    142,329.62x = 22,300,506,857.61
  5. Step 5: Solve for x
    x = 22,300,506,857.61/142,329.62
  6. Step 6: Final answer
    x = 156,682.13

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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.