Home / 196,539.04-271,139.82-128,437.82

Finding the Fourth Proportional to 196,539.04, 271,139.82 and 128,437.82

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Solution

The fourth proportional to 196,539.04, 271,139.82 and 128,437.82 is: 177,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,539.04 : 271,139.82 = 128,437.82 : x
  2. Step 2: Convert to fraction form
    196,539.04/271,139.82 = 128,437.82/x
  3. Step 3: Cross multiply
    196,539.04x = 271,139.82 × 128,437.82
  4. Step 4: Simplify right side
    196,539.04x = 34,824,607,395.99
  5. Step 5: Solve for x
    x = 34,824,607,395.99/196,539.04
  6. Step 6: Final answer
    x = 177,189.26

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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.