Home / 142,518.08-213,850.94-103,398.12

Finding the Fourth Proportional to 142,518.08, 213,850.94 and 103,398.12

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Solution

The fourth proportional to 142,518.08, 213,850.94 and 103,398.12 is: 155,150.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,518.08 : 213,850.94 = 103,398.12 : x
  2. Step 2: Convert to fraction form
    142,518.08/213,850.94 = 103,398.12/x
  3. Step 3: Cross multiply
    142,518.08x = 213,850.94 × 103,398.12
  4. Step 4: Simplify right side
    142,518.08x = 22,111,784,639.24
  5. Step 5: Solve for x
    x = 22,111,784,639.24/142,518.08
  6. Step 6: Final answer
    x = 155,150.73

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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.