Home / 139,931.26-209,835.09-40,068.76

Finding the Fourth Proportional to 139,931.26, 209,835.09 and 40,068.76

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Solution

The fourth proportional to 139,931.26, 209,835.09 and 40,068.76 is: 60,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,931.26 : 209,835.09 = 40,068.76 : x
  2. Step 2: Convert to fraction form
    139,931.26/209,835.09 = 40,068.76/x
  3. Step 3: Cross multiply
    139,931.26x = 209,835.09 × 40,068.76
  4. Step 4: Simplify right side
    139,931.26x = 8,407,831,860.79
  5. Step 5: Solve for x
    x = 8,407,831,860.79/139,931.26
  6. Step 6: Final answer
    x = 60,085.44

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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.