Home / 139,926.72-193,102.95-76,268.64

Finding the Fourth Proportional to 139,926.72, 193,102.95 and 76,268.64

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Solution

The fourth proportional to 139,926.72, 193,102.95 and 76,268.64 is: 105,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,926.72 : 193,102.95 = 76,268.64 : x
  2. Step 2: Convert to fraction form
    139,926.72/193,102.95 = 76,268.64/x
  3. Step 3: Cross multiply
    139,926.72x = 193,102.95 × 76,268.64
  4. Step 4: Simplify right side
    139,926.72x = 14,727,699,376.49
  5. Step 5: Solve for x
    x = 14,727,699,376.49/139,926.72
  6. Step 6: Final answer
    x = 105,252.95

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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.