Home / 155,026.63-213,936.87-90,539.83

Finding the Fourth Proportional to 155,026.63, 213,936.87 and 90,539.83

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Solution

The fourth proportional to 155,026.63, 213,936.87 and 90,539.83 is: 124,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,026.63 : 213,936.87 = 90,539.83 : x
  2. Step 2: Convert to fraction form
    155,026.63/213,936.87 = 90,539.83/x
  3. Step 3: Cross multiply
    155,026.63x = 213,936.87 × 90,539.83
  4. Step 4: Simplify right side
    155,026.63x = 19,369,807,840.53
  5. Step 5: Solve for x
    x = 19,369,807,840.53/155,026.63
  6. Step 6: Final answer
    x = 124,945.04

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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.