Home / 142,699.73-213,895.08-92,815.47

Finding the Fourth Proportional to 142,699.73, 213,895.08 and 92,815.47

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Solution

The fourth proportional to 142,699.73, 213,895.08 and 92,815.47 is: 139,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,699.73 : 213,895.08 = 92,815.47 : x
  2. Step 2: Convert to fraction form
    142,699.73/213,895.08 = 92,815.47/x
  3. Step 3: Cross multiply
    142,699.73x = 213,895.08 × 92,815.47
  4. Step 4: Simplify right side
    142,699.73x = 19,852,772,380.89
  5. Step 5: Solve for x
    x = 19,852,772,380.89/142,699.73
  6. Step 6: Final answer
    x = 139,122.71

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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.