Home / 139,822.87-208,677.95-130,342.21

Finding the Fourth Proportional to 139,822.87, 208,677.95 and 130,342.21

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Solution

The fourth proportional to 139,822.87, 208,677.95 and 130,342.21 is: 194,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,822.87 : 208,677.95 = 130,342.21 : x
  2. Step 2: Convert to fraction form
    139,822.87/208,677.95 = 130,342.21/x
  3. Step 3: Cross multiply
    139,822.87x = 208,677.95 × 130,342.21
  4. Step 4: Simplify right side
    139,822.87x = 27,199,545,181.27
  5. Step 5: Solve for x
    x = 27,199,545,181.27/139,822.87
  6. Step 6: Final answer
    x = 194,528.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.