Home / 139,973.47-193,164.04-76,311.26

Finding the Fourth Proportional to 139,973.47, 193,164.04 and 76,311.26

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Solution

The fourth proportional to 139,973.47, 193,164.04 and 76,311.26 is: 105,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,973.47 : 193,164.04 = 76,311.26 : x
  2. Step 2: Convert to fraction form
    139,973.47/193,164.04 = 76,311.26/x
  3. Step 3: Cross multiply
    139,973.47x = 193,164.04 × 76,311.26
  4. Step 4: Simplify right side
    139,973.47x = 14,740,592,219.57
  5. Step 5: Solve for x
    x = 14,740,592,219.57/139,973.47
  6. Step 6: Final answer
    x = 105,309.90

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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.