Home / 139,909.60-193,069.62-76,246.04

Finding the Fourth Proportional to 139,909.60, 193,069.62 and 76,246.04

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Solution

The fourth proportional to 139,909.60, 193,069.62 and 76,246.04 is: 105,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,909.60 : 193,069.62 = 76,246.04 : x
  2. Step 2: Convert to fraction form
    139,909.60/193,069.62 = 76,246.04/x
  3. Step 3: Cross multiply
    139,909.60x = 193,069.62 × 76,246.04
  4. Step 4: Simplify right side
    139,909.60x = 14,720,793,969.30
  5. Step 5: Solve for x
    x = 14,720,793,969.30/139,909.60
  6. Step 6: Final answer
    x = 105,216.47

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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.