Home / 161,539.61-242,309.45-72,689.32

Finding the Fourth Proportional to 161,539.61, 242,309.45 and 72,689.32

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Solution

The fourth proportional to 161,539.61, 242,309.45 and 72,689.32 is: 109,033.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,539.61 : 242,309.45 = 72,689.32 : x
  2. Step 2: Convert to fraction form
    161,539.61/242,309.45 = 72,689.32/x
  3. Step 3: Cross multiply
    161,539.61x = 242,309.45 × 72,689.32
  4. Step 4: Simplify right side
    161,539.61x = 17,613,308,067.25
  5. Step 5: Solve for x
    x = 17,613,308,067.25/161,539.61
  6. Step 6: Final answer
    x = 109,033.99

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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.