Home / 143,693.12-215,539.55-67,773.95

Finding the Fourth Proportional to 143,693.12, 215,539.55 and 67,773.95

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Solution

The fourth proportional to 143,693.12, 215,539.55 and 67,773.95 is: 101,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,693.12 : 215,539.55 = 67,773.95 : x
  2. Step 2: Convert to fraction form
    143,693.12/215,539.55 = 67,773.95/x
  3. Step 3: Cross multiply
    143,693.12x = 215,539.55 × 67,773.95
  4. Step 4: Simplify right side
    143,693.12x = 14,607,966,330.58
  5. Step 5: Solve for x
    x = 14,607,966,330.58/143,693.12
  6. Step 6: Final answer
    x = 101,660.86

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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.